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\item �ȉ��̐}�`��$3$�{�Ɋg�債���}�`�������Ȃ����B

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\item �ȉ���\fbox{\hspace{5mm}�@}�ɂ��Ă͂܂錾�t�܂��͎��������Ȃ����B

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\item �����Ȑ}�`�ł́C�Ή�����\fbox{~\ajMaru{1}~}��\fbox{~\ajMaru{2}~}�͓������B

\item ���_�A���藝�Ƃ�$\triangle \mathrm{ABC}$�ɂ������$\mathrm{AB}$��$\mathrm{AC}$�̒��_�����ꂼ��$\mathrm{P},\,\mathrm{Q}$�Ƃ���Ƃ�\fbox{~\ajMaru{3}~}��\fbox{~\ajMaru{4}~}�����藧�}�`�̐����ł���B

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\item ���̐���$\mathrm{AB}$��$3$��������_$\mathrm{P},\,\mathrm{Q}$����}���Ȃ����B��������}�Ɏg�p�������͏����Ȃ����ƁB

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\item�@���̐}�̂悤��$\triangle \mathrm{ABC}$�̕�$\mathrm{BC}$��ɓ_$\mathrm{D}$���Ƃ�܂��B�ȉ��̖₢�ɓ����Ȃ����B

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\special{pa 2476 686}%
\special{pa 2454 664}%
\special{pa 2430 642}%
\special{pa 2408 618}%
\special{pa 2384 598}%
\special{pa 2360 576}%
\special{pa 2336 554}%
\special{pa 2312 534}%
\special{pa 2288 514}%
\special{pa 2260 496}%
\special{pa 2236 476}%
\special{pa 2208 458}%
\special{pa 2182 440}%
\special{pa 2154 424}%
\special{pa 2126 412}%
\special{pa 2096 400}%
\special{pa 2064 394}%
\special{pa 2032 396}%
\special{pa 2018 404}%
\special{sp}%
}}%
% STR 2 0 3 0 Black White
% 4 2460 740 2460 840 2 0 0 0
% $6\ajLig{cm}$
\put(24.6000,-8.4000){\makebox(0,0)[lb]{$6$\ajLig{cm}}}%
% ELLIPSE 2 0 3 0 Black White
% 4 2500 1400 2800 1530 2000 1390 2800 1390
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{ar 2500 1400 300 130  6.2066683 6.2831853}%
\special{ar 2500 1400 300 130  0.0000000 3.1875602}%
}}%
% STR 2 0 3 0 Black White
% 4 2410 1570 2410 1670 2 0 0 0
% $3\ajLig{cm}$
\put(24.1000,-16.7000){\makebox(0,0)[lb]{$3$\ajLig{cm}}}%
\end{picture}%

\begin{enumerate}
\item $\triangle \mathrm{ABC}$��$\triangle \mathrm{DAC}$���ؖ����Ȃ����B

%\vspace{2mm}
\hspace{-10mm}
\begin{tabular}{|c|}
\hline
\begin{tabular}{@{}r@{}c@{}l@{}}
\multicolumn{1}{@{}l@{}}{~~�ؖ�)} &&\\[-12pt]
\color{white}{~~~~~~~~~~~~$\triangle \mathrm{ABC}$}&\color{white}{��}&\color{white}{$\triangle \mathrm{DAC}$�ɂ�����} \\
\color{white}{$\mathrm{BC:AC}$} & \color{white}{$\,=\,$} & \color{white}{$12:6=2:1$ (����) \hspace*{1mm}�c\ajMaru{1}} \\
\color{white}{$\mathrm{AC:DC}$} & \color{white}{$\,=\,$} & \color{white}{$6:3=2:1$ (����) \hspace*{1mm}�c\ajMaru{2}} \\
\multicolumn{3}{@{}l@{}}{\color{white}{~\ajMaru{1}\ajMaru{2}���}} \\
\color{white}{$\mathrm{BC:AC}$} & \color{white}{$\,=\,$} & \color{white}{$\mathrm{AC:DC}$\hspace*{1mm}�c\ajMaru{3}} \\
\color{white}{$\angle \mathrm{C}$} & \color{white}{��} & \color{white}{����\hspace*{1mm}�c\ajMaru{4}} \\
\multicolumn{3}{@{}l@{}}{\color{white}{~\ajMaru{3}\ajMaru{4}���}} \\
\color{white}{$\triangle \mathrm{ABC}$}&\color{white}{��}&\color{white}{$\triangle \mathrm{DAC}$\,(2�ӂ̔�Ƃ��̊Ԃ̊p)~~~~~~~} \\
\end{tabular} \\
\hline
\end{tabular} 

\item ��$\mathrm{AD}$�̒��������߂Ȃ����B

{\color{white}{$\mathrm{AD}:10=3:6$}}

\vspace{-4mm}
\begin{flushright}
\begin{tabular}{|c|}
\hline
\hspace{30mm} \\[-8pt]
%$\mathstrut$ \\[-8pt]
$\mathrm{AD}$\,={\color{white}{~~~~~$5$}~~~~~~~~}\ajLig{cm} \\[-8pt]
\hspace{30mm} \\
\hline
\end{tabular}
\end{flushright}

\end{enumerate}

\item ���̐}��$x$��$y$�̒��������߂Ȃ����B

\vspace{5mm}
%WinTpicVersion4.10
\unitlength 0.1in
\begin{picture}( 32.3400, 19.0400)(  1.3000,-20.5400)
\put(1.1600,-1.3000){\makebox(0,0)[lb]{($1$)\,$\mathrm{PQ}$/\hspace{-1mm}/$\mathrm{BC}$}}%
\put(20.1600,-1.3000){\makebox(0,0)[lb]{($2$)\,$\mathrm{AC}$/\hspace{-1mm}/$\mathrm{EF}$/\hspace{-1mm}/$\mathrm{DB}$}}%
% LINE 1 0 3 0 Black White
% 6 943 330 175 1738 175 1738 1711 1610 1711 1610 943 330
% 
{\color[named]{Black}{%
\special{pn 13}%
\special{pa 944 330}%
\special{pa 176 1738}%
\special{fp}%
\special{pa 176 1738}%
\special{pa 1712 1610}%
\special{fp}%
\special{pa 1712 1610}%
\special{pa 944 330}%
\special{fp}%
}}%
% STR 2 0 3 0 Black White
% 4 516 666 516 730 2 0 0 0
% $6$\ajLig{cm}
\put(5.1600,-7.3000){\makebox(0,0)[lb]{$6$\ajLig{cm}}}%
% STR 2 0 3 0 Black White
% 4 275 758 275 822 2 0 0 0
% $9$\ajLig{cm}
\put(2.7500,-8.2200){\makebox(0,0)[lb]{$9$\ajLig{cm}}}%
% LINE 1 0 3 0 Black White
% 2 469 1207 1410 1117
% 
{\color[named]{Black}{%
\special{pn 13}%
\special{pa 470 1208}%
\special{pa 1410 1118}%
\special{fp}%
}}%
% STR 2 0 3 0 Black White
% 4 850 1255 850 1319 2 0 0 0
% $5$\ajLig{cm}
\put(8.5000,-13.1900){\makebox(0,0)[lb]{$5$\ajLig{cm}}}%
% STR 2 0 3 0 Black White
% 4 808 1754 808 1818 2 0 0 0
% $y$\ajLig{cm}
\put(8.0800,-18.1800){\makebox(0,0)[lb]{$y$\ajLig{cm}}}%
% STR 2 0 3 0 Black White
% 4 1615 1357 1615 1421 2 0 0 0
% $x$\ajLig{cm}
\put(16.1500,-14.2100){\makebox(0,0)[lb]{$x$\ajLig{cm}}}%
% STR 2 0 3 0 Black White
% 4 904 234 904 298 2 0 0 0
% $\mathrm{A}$
\put(9.0400,-2.9800){\makebox(0,0)[lb]{$\mathrm{A}$}}%
% STR 2 0 3 0 Black White
% 4 1205 618 1205 682 2 0 0 0
% $4$\ajLig{cm}
\put(12.0500,-6.8200){\makebox(0,0)[lb]{$4$\ajLig{cm}}}%
% STR 2 0 3 0 Black White
% 4 130 1783 130 1847 2 0 0 0
% $\mathrm{B}$
\put(1.3000,-18.6700){\makebox(0,0)[lb]{$\mathrm{B}$}}%
% STR 2 0 3 0 Black White
% 4 1666 1655 1666 1719 2 0 0 0
% $\mathrm{C}$
\put(16.6600,-17.3900){\makebox(0,0)[lb]{$\mathrm{C}$}}%
% STR 2 0 3 0 Black White
% 4 327 1180 327 1244 2 0 0 0
% $\mathrm{P}$
\put(3.2700,-12.4400){\makebox(0,0)[lb]{$\mathrm{P}$}}%
% STR 2 0 3 0 Black White
% 4 1448 1079 1448 1143 2 0 0 0
% $\mathrm{Q}$
\put(14.4800,-11.4300){\makebox(0,0)[lb]{$\mathrm{Q}$}}%
% SPLINE 2 0 3 0 Black White
% 41 712 553 718 544 724 536 732 527 738 518 745 509 752 500 760 492 767 483 774 474 782 466 788 456 797 448 804 440 812 432 819 424 826 417 833 410 840 402 848 396 855 389 861 383 868 377 874 372 880 367 887 361 893 357 898 352 904 348 909 345 914 343 919 340 923 338 927 336 931 335 935 334 938 333 940 333 942 333 945 334 947 335
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{pa 712 554}%
\special{pa 732 528}%
\special{pa 750 502}%
\special{pa 772 478}%
\special{pa 792 454}%
\special{pa 814 430}%
\special{pa 836 408}%
\special{pa 860 386}%
\special{pa 884 364}%
\special{pa 910 346}%
\special{pa 938 334}%
\special{pa 948 336}%
\special{sp}%
}}%
% SPLINE 2 0 3 0 Black White
% 41 1181 553 1175 544 1168 536 1162 527 1156 518 1148 509 1140 500 1133 492 1127 483 1120 474 1111 466 1104 456 1096 448 1089 440 1082 432 1075 424 1068 417 1060 410 1053 402 1046 396 1039 389 1032 383 1025 377 1019 372 1012 367 1006 361 1000 357 996 352 989 348 984 345 980 343 975 340 970 338 967 336 963 335 959 334 956 333 953 333 951 333 948 334 947 335
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{pa 1182 554}%
\special{pa 1162 528}%
\special{pa 1142 502}%
\special{pa 1124 478}%
\special{pa 1102 454}%
\special{pa 1080 430}%
\special{pa 1058 408}%
\special{pa 1034 386}%
\special{pa 1010 366}%
\special{pa 986 346}%
\special{pa 956 334}%
\special{pa 948 336}%
\special{sp}%
}}%
% SPLINE 1 0 3 0 Black White
% 41 1304 733 1310 748 1316 764 1322 778 1328 792 1333 808 1339 822 1344 837 1349 851 1355 866 1360 879 1364 892 1369 906 1373 920 1377 932 1382 945 1386 957 1389 968 1392 981 1396 992 1399 1003 1402 1013 1405 1023 1408 1032 1409 1042 1412 1051 1414 1058 1415 1067 1416 1074 1417 1080 1418 1087 1419 1092 1420 1098 1420 1103 1419 1107 1419 1110 1419 1114 1418 1116 1416 1119 1416 1120 1414 1121
% 
{\color[named]{Black}{%
\special{pn 13}%
\special{pa 1304 734}%
\special{pa 1316 764}%
\special{pa 1328 792}%
\special{pa 1340 822}%
\special{pa 1350 854}%
\special{pa 1362 882}%
\special{pa 1372 914}%
\special{pa 1382 944}%
\special{pa 1390 974}%
\special{pa 1400 1004}%
\special{pa 1408 1036}%
\special{pa 1416 1066}%
\special{pa 1420 1098}%
\special{pa 1414 1122}%
\special{sp}%
}}%
% SPLINE 2 0 3 0 Black White
% 41 1642 1340 1636 1332 1629 1324 1623 1314 1616 1305 1609 1296 1601 1288 1594 1279 1588 1270 1580 1261 1572 1253 1565 1244 1557 1236 1550 1228 1543 1220 1536 1212 1528 1204 1520 1197 1514 1189 1507 1183 1500 1176 1492 1170 1486 1164 1480 1159 1473 1154 1467 1148 1461 1144 1456 1140 1450 1136 1445 1132 1440 1130 1436 1128 1431 1125 1428 1123 1424 1122 1420 1121 1416 1120 1414 1120 1412 1120 1408 1121 1408 1122
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{pa 1642 1340}%
\special{pa 1624 1314}%
\special{pa 1604 1290}%
\special{pa 1584 1264}%
\special{pa 1562 1242}%
\special{pa 1540 1218}%
\special{pa 1518 1194}%
\special{pa 1496 1172}%
\special{pa 1472 1152}%
\special{pa 1446 1132}%
\special{pa 1416 1120}%
\special{pa 1408 1122}%
\special{sp}%
}}%
% SPLINE 1 0 3 0 Black White
% 41 572 820 566 834 560 850 554 864 548 879 543 895 537 908 532 924 527 937 521 952 516 965 512 979 507 992 503 1006 499 1019 494 1032 490 1044 487 1055 484 1068 480 1078 477 1089 474 1100 471 1109 468 1119 467 1128 464 1137 462 1144 461 1153 460 1160 459 1167 458 1173 457 1179 456 1184 456 1189 457 1193 457 1196 457 1200 458 1203 460 1205 460 1207 462 1208
% 
{\color[named]{Black}{%
\special{pn 13}%
\special{pa 572 820}%
\special{pa 560 850}%
\special{pa 548 880}%
\special{pa 516 970}%
\special{pa 506 1000}%
\special{pa 496 1030}%
\special{pa 486 1062}%
\special{pa 476 1092}%
\special{pa 468 1122}%
\special{pa 462 1154}%
\special{pa 456 1186}%
\special{pa 462 1208}%
\special{sp}%
}}%
% SPLINE 2 0 3 0 Black White
% 41 1679 1415 1682 1422 1686 1428 1688 1436 1692 1442 1695 1449 1697 1456 1700 1462 1703 1469 1705 1476 1707 1483 1709 1490 1712 1496 1713 1503 1716 1509 1716 1516 1719 1521 1720 1528 1721 1533 1722 1540 1723 1544 1724 1550 1724 1556 1725 1560 1725 1566 1725 1570 1725 1575 1725 1580 1724 1583 1724 1587 1722 1591 1722 1594 1721 1598 1720 1601 1719 1604 1717 1606 1716 1608 1714 1611 1712 1612 1709 1614 1708 1615
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{pa 1680 1416}%
\special{pa 1694 1444}%
\special{pa 1704 1474}%
\special{pa 1714 1504}%
\special{pa 1722 1534}%
\special{pa 1726 1566}%
\special{pa 1722 1598}%
\special{pa 1708 1616}%
\special{sp}%
}}%
% SPLINE 2 0 3 0 Black White
% 42 504 608 521 595 538 582 554 569 571 557 587 544 605 531 621 518 638 508 654 496 669 484 685 472 701 461 717 451 731 441 746 431 760 421 774 413 787 404 801 395 815 388 826 381 838 374 848 367 860 362 869 357 877 352 887 348 895 344 903 340 910 339 916 336 922 336 927 335 931 333 934 334 936 336 939 337 939 340 940 341 940 345 940 345
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{pa 504 608}%
\special{pa 530 590}%
\special{pa 554 570}%
\special{pa 580 550}%
\special{pa 606 530}%
\special{pa 632 512}%
\special{pa 658 494}%
\special{pa 684 474}%
\special{pa 710 456}%
\special{pa 762 420}%
\special{pa 790 402}%
\special{pa 818 388}%
\special{pa 844 370}%
\special{pa 872 356}%
\special{pa 902 342}%
\special{pa 932 334}%
\special{pa 940 346}%
\special{sp}%
}}%
% SPLINE 2 0 3 0 Black White
% 42 1711 1615 1710 1616 1710 1618 1708 1620 1706 1622 1702 1624 1699 1628 1694 1629 1688 1632 1682 1635 1674 1637 1667 1640 1658 1644 1648 1646 1639 1649 1629 1653 1616 1656 1605 1659 1592 1663 1579 1666 1565 1669 1551 1672 1536 1676 1520 1680 1504 1682 1488 1687 1471 1691 1453 1693 1435 1698 1416 1701 1398 1704 1379 1708 1360 1712 1340 1716 1320 1720 1300 1723 1279 1727 1258 1730 1237 1733 1216 1736 1196 1740 1196 1740
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{pa 1712 1616}%
\special{pa 1688 1634}%
\special{pa 1658 1644}%
\special{pa 1626 1654}%
\special{pa 1596 1662}%
\special{pa 1564 1670}%
\special{pa 1534 1678}%
\special{pa 1502 1684}%
\special{pa 1472 1692}%
\special{pa 1440 1698}%
\special{pa 1408 1702}%
\special{pa 1378 1710}%
\special{pa 1346 1716}%
\special{pa 1314 1722}%
\special{pa 1282 1726}%
\special{pa 1252 1732}%
\special{pa 1220 1736}%
\special{pa 1196 1740}%
\special{sp}%
}}%
% SPLINE 2 0 3 0 Black White
% 42 178 1736 179 1738 180 1740 182 1740 184 1743 188 1745 192 1748 196 1749 203 1752 208 1753 218 1755 224 1757 234 1759 244 1760 254 1762 264 1765 276 1765 288 1768 301 1770 315 1772 330 1774 344 1775 359 1777 376 1778 391 1779 408 1781 425 1784 444 1784 461 1787 480 1788 500 1789 519 1791 538 1792 559 1794 579 1794 599 1795 620 1797 640 1798 663 1799 683 1799 704 1800 704 1800
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{pa 178 1736}%
\special{pa 204 1752}%
\special{pa 236 1760}%
\special{pa 266 1766}%
\special{pa 298 1770}%
\special{pa 330 1774}%
\special{pa 362 1778}%
\special{pa 394 1780}%
\special{pa 426 1784}%
\special{pa 490 1788}%
\special{pa 520 1792}%
\special{pa 552 1794}%
\special{pa 584 1794}%
\special{pa 616 1798}%
\special{pa 680 1800}%
\special{pa 704 1800}%
\special{sp}%
}}%
% SPLINE 2 0 3 0 Black White
% 42 1412 1124 1412 1125 1412 1128 1412 1130 1410 1132 1408 1135 1405 1137 1403 1140 1400 1142 1396 1145 1392 1148 1388 1151 1383 1154 1377 1157 1372 1160 1366 1164 1359 1167 1352 1170 1344 1173 1337 1176 1328 1180 1320 1184 1311 1188 1302 1191 1292 1195 1283 1198 1273 1201 1262 1205 1252 1208 1240 1212 1229 1215 1219 1218 1207 1222 1195 1225 1184 1229 1172 1232 1160 1236 1147 1239 1135 1243 1122 1245 1110 1248 1110 1248
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{pa 1412 1124}%
\special{pa 1394 1148}%
\special{pa 1366 1164}%
\special{pa 1336 1176}%
\special{pa 1308 1190}%
\special{pa 1278 1200}%
\special{pa 1246 1210}%
\special{pa 1216 1220}%
\special{pa 1186 1230}%
\special{pa 1156 1238}%
\special{pa 1124 1246}%
\special{pa 1110 1248}%
\special{sp}%
}}%
% SPLINE 2 0 3 0 Black White
% 42 462 1215 463 1216 464 1219 464 1221 465 1224 468 1224 471 1227 474 1229 476 1231 480 1234 485 1236 490 1238 496 1240 502 1242 508 1244 514 1247 522 1248 528 1252 536 1253 544 1256 554 1258 562 1260 572 1262 582 1264 592 1266 602 1268 612 1269 623 1272 634 1272 646 1275 656 1276 668 1278 680 1280 692 1281 704 1283 717 1284 729 1285 742 1286 755 1288 768 1288 780 1290 780 1290
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{pa 462 1216}%
\special{pa 484 1236}%
\special{pa 514 1248}%
\special{pa 544 1256}%
\special{pa 576 1262}%
\special{pa 606 1268}%
\special{pa 638 1274}%
\special{pa 670 1278}%
\special{pa 702 1282}%
\special{pa 734 1286}%
\special{pa 764 1288}%
\special{pa 780 1290}%
\special{sp}%
}}%
% SPLINE 2 0 3 0 Black White
% 41 183 1737 180 1736 177 1732 176 1728 173 1723 172 1716 170 1708 170 1698 170 1687 170 1676 170 1662 172 1648 173 1632 175 1615 176 1597 180 1579 183 1559 186 1537 190 1516 196 1492 200 1468 204 1442 210 1416 216 1391 222 1363 228 1335 235 1306 243 1276 250 1247 257 1215 266 1184 274 1153 283 1120 292 1088 301 1055 310 1023 320 989 329 956 340 922 349 888 359 855
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{pa 184 1738}%
\special{pa 170 1710}%
\special{pa 170 1678}%
\special{pa 172 1646}%
\special{pa 176 1614}%
\special{pa 180 1582}%
\special{pa 184 1550}%
\special{pa 190 1520}%
\special{pa 198 1488}%
\special{pa 202 1456}%
\special{pa 208 1426}%
\special{pa 216 1394}%
\special{pa 222 1362}%
\special{pa 230 1332}%
\special{pa 246 1270}%
\special{pa 260 1208}%
\special{pa 268 1176}%
\special{pa 276 1146}%
\special{pa 286 1114}%
\special{pa 294 1084}%
\special{pa 302 1054}%
\special{pa 310 1022}%
\special{pa 328 960}%
\special{pa 338 930}%
\special{pa 346 900}%
\special{pa 356 868}%
\special{pa 360 856}%
\special{sp}%
}}%
% LINE 1 0 3 0 Black White
% 10 1850 340 3050 340 3050 340 3250 1940 3250 1940 1850 340 3050 340 2250 1940 2250 1940 3250 1940
% 
{\color[named]{Black}{%
\special{pn 13}%
\special{pa 1850 340}%
\special{pa 3050 340}%
\special{fp}%
\special{pa 3050 340}%
\special{pa 3250 1940}%
\special{fp}%
\special{pa 3250 1940}%
\special{pa 1850 340}%
\special{fp}%
\special{pa 3050 340}%
\special{pa 2250 1940}%
\special{fp}%
\special{pa 2250 1940}%
\special{pa 3250 1940}%
\special{fp}%
}}%
% STR 2 0 3 0 Black White
% 4 1785 231 1785 295 2 0 0 0
% $\mathrm{A}$
\put(17.8500,-2.9500){\makebox(0,0)[lb]{$\mathrm{A}$}}%
% STR 2 0 3 0 Black White
% 4 3000 231 3000 295 2 0 0 0
% $\mathrm{C}$
\put(30.0000,-2.9500){\makebox(0,0)[lb]{$\mathrm{C}$}}%
% STR 2 0 3 0 Black White
% 4 3285 1931 3285 1995 2 0 0 0
% $\mathrm{B}$
\put(32.8500,-19.9500){\makebox(0,0)[lb]{$\mathrm{B}$}}%
% STR 2 0 3 0 Black White
% 4 2105 1931 2105 1995 2 0 0 0
% $\mathrm{D}$
\put(21.0500,-19.9500){\makebox(0,0)[lb]{$\mathrm{D}$}}%
% STR 2 0 3 0 Black White
% 4 2400 1231 2400 1295 2 0 0 0
% $\mathrm{E}$
\put(24.0000,-12.9500){\makebox(0,0)[lb]{$\mathrm{E}$}}%
% STR 2 0 3 0 Black White
% 4 3200 1231 3200 1295 2 0 0 0
% $\mathrm{F}$
\put(32.0000,-12.9500){\makebox(0,0)[lb]{$\mathrm{F}$}}%
% LINE 1 0 3 0 Black White
% 2 2610 1215 3155 1215
% 
{\color[named]{Black}{%
\special{pn 13}%
\special{pa 2610 1216}%
\special{pa 3156 1216}%
\special{fp}%
}}%
% STR 2 0 3 0 Black White
% 4 2635 2056 2635 2120 2 0 0 0
% $6$\ajLig{cm}
\put(26.3500,-21.2000){\makebox(0,0)[lb]{$6$\ajLig{cm}}}%
% STR 2 0 3 0 Black White
% 4 2260 238 2260 302 2 0 0 0
% $9$\ajLig{cm}
\put(22.6000,-3.0200){\makebox(0,0)[lb]{$9$\ajLig{cm}}}%
% STR 2 0 3 0 Black White
% 4 3275 983 3275 1047 2 0 0 0
% $15$\ajLig{cm}
\put(32.7500,-10.4700){\makebox(0,0)[lb]{$15$\ajLig{cm}}}%
% STR 2 0 3 0 Black White
% 4 2794 1070 2794 1134 2 0 0 0
% $y$\ajLig{cm}
\put(27.9400,-11.3400){\makebox(0,0)[lb]{$y$\ajLig{cm}}}%
% STR 2 0 3 0 Black White
% 4 3190 871 3190 935 2 0 0 0
% $x$\ajLig{cm}
\put(31.9000,-9.3500){\makebox(0,0)[lb]{$x$\ajLig{cm}}}%
% SPLINE 2 0 3 0 Black White
% 42 3242 1924 3242 1925 3242 1928 3242 1930 3240 1932 3238 1935 3235 1937 3233 1940 3230 1942 3226 1945 3222 1948 3218 1951 3213 1954 3207 1957 3202 1960 3196 1964 3189 1967 3182 1970 3174 1973 3167 1976 3158 1980 3150 1984 3141 1988 3132 1991 3122 1995 3113 1998 3103 2001 3092 2005 3082 2008 3070 2012 3059 2015 3049 2018 3037 2022 3025 2025 3014 2029 3002 2032 2990 2036 2977 2039 2965 2043 2952 2045 2940 2048 2940 2048
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{pa 3242 1924}%
\special{pa 3224 1948}%
\special{pa 3196 1964}%
\special{pa 3166 1976}%
\special{pa 3138 1990}%
\special{pa 3108 2000}%
\special{pa 3076 2010}%
\special{pa 3046 2020}%
\special{pa 3016 2030}%
\special{pa 2986 2038}%
\special{pa 2954 2046}%
\special{pa 2940 2048}%
\special{sp}%
}}%
% SPLINE 2 0 3 0 Black White
% 42 2262 1940 2263 1941 2263 1944 2263 1946 2264 1949 2267 1950 2269 1953 2272 1955 2274 1958 2277 1961 2282 1964 2287 1966 2293 1969 2298 1972 2304 1975 2310 1978 2317 1980 2323 1985 2331 1987 2338 1991 2348 1994 2356 1997 2365 2000 2375 2004 2385 2007 2394 2010 2404 2012 2415 2017 2426 2018 2437 2022 2447 2025 2459 2028 2470 2032 2482 2034 2494 2038 2506 2040 2518 2043 2531 2045 2544 2049 2556 2051 2568 2054 2568 2054
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{pa 2262 1940}%
\special{pa 2282 1964}%
\special{pa 2310 1978}%
\special{pa 2338 1992}%
\special{pa 2398 2012}%
\special{pa 2430 2020}%
\special{pa 2460 2028}%
\special{pa 2490 2038}%
\special{pa 2522 2044}%
\special{pa 2554 2050}%
\special{pa 2568 2054}%
\special{sp}%
}}%
% SPLINE 2 0 3 0 Black White
% 42 1857 335 1858 334 1859 331 1859 329 1860 326 1863 326 1866 323 1869 321 1871 319 1875 316 1880 314 1885 312 1891 310 1897 308 1903 306 1909 303 1917 302 1923 298 1931 297 1939 294 1949 292 1957 290 1967 288 1977 286 1987 284 1997 282 2007 281 2018 278 2029 278 2041 275 2051 274 2063 272 2075 270 2087 269 2099 267 2112 266 2124 265 2137 264 2150 262 2163 262 2175 260 2175 260
% 
{\color[named]{Black}{%
\special{pn 8}%
\special{pa 1858 336}%
\special{pa 1878 316}%
\special{pa 1908 304}%
\special{pa 1938 294}%
\special{pa 1970 288}%
\special{pa 2002 282}%
\special{pa 2032 278}%
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\vspace{5mm}
\begin{tabular}{|c|c|c|}
\hline
 & \hspace{33mm} & \hspace{33mm} \\[-8pt]
(1) & $x=~~~~~~~~{\color{white}{2}}$~~~~~~~\ajLig{cm} & $y=~~~~~~~~{\color{white}{\dfrac{15}{2}}}$~~~~~~~\ajLig{cm} \\[-8pt]
 & & \\
\hline
 & & \\[-8pt]
(2) & $x=~~~~~~~~{\color{white}{9}}$~~~~~~~\ajLig{cm} & $y=~~~~~~~~{\color{white}{\dfrac{\,18\,}{\,5\,}}}$~~~~~~~\ajLig{cm} \\[-8pt]
 & & \\
\hline
\end{tabular}

\begin{minipage}{12zw}
\item �E�̐}��$\triangle \mathrm{ABC}$�ɂ�����$\angle\,\mathrm{A}$�̓񓙕�����������$\mathrm{BC}$�Ƃ̌�_��$\mathrm{D}$�Ƃ��C�܂��_$\mathrm{C}$�������$\mathrm{AD}$�ɕ��s�Ȑ�������$\mathrm{BA}$�̉������Ƃ̌�_��$\mathrm{E}$�Ƃ����}�ł���B
���̂Ƃ��ȉ��̖₢�ɓ����Ȃ����B
\end{minipage}
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\vspace{5mm}
\begin{enumerate}
\item $\mathrm{AB}:\mathrm{AC}=\mathrm{BD}:\mathrm{DC}$�ƂȂ邱�Ƃ��ؖ����Ȃ����B

\vspace{2mm}
\hspace{-8mm}
\begin{tabular}{|c|}
\hline
\begin{tabular}{@{}r@{}c@{}l@{}}
\multicolumn{1}{@{}l@{}}{~~�ؖ�)} &&\\
\color{white}{~����$\mathrm{AD}/\hspace{-0.5mm}/\mathrm{EC}$���}&& \\
\color{white}{$\mathrm{BA:AE}$} & \color{white}{$\,=\,$} & \color{white}{$\mathrm{BD:DC}$ (���s���Ɣ�̐���) \hspace*{1mm}�c\ajMaru{1}} \\
\multicolumn{3}{@{}l@{}}{\color{white}{~����$\mathrm{AD}/\hspace{-0.5mm}/\mathrm{EC}$���}} \\
\color{white}{$\angle\,\mathrm{BAD}$} & \color{white}{$=$} & \color{white}{$\angle\,\mathrm{E}$ (���s���̓��ʊp) \hspace*{1.5mm}�c�c�c�c\ajMaru{2}} \\
\color{white}{$\angle\,\mathrm{DAC}$} & \color{white}{$=$} & \color{white}{$\angle\,\mathrm{ACE}$ (���s���̍��p) \hspace*{1.5mm}�c�c�c\ajMaru{3}} \\
\color{white}{$\angle\,\mathrm{BAD}$} & \color{white}{$=$} & \color{white}{$\angle\,\mathrm{CAD}$ (����) �c�c�c�c�c�c\ajMaru{4}} \\
\multicolumn{3}{@{}l@{}}{~\color{white}{\ajMaru{2}\ajMaru{3}\ajMaru{4}���}} \\
\color{white}{$\angle\,\mathrm{ACE}$} & \color{white}{$=$} & \color{white}{$\angle\,\mathrm{E}$} \\
\multicolumn{3}{@{}l@{}}{~\color{white}{����ē񓙕ӎO�p�`�ɂȂ邽�߂̏������}} \\
\color{white}{$\mathrm{AC}$} & \color{white}{$=$} & \color{white}{$\mathrm{AE}$\hspace*{1.5mm}�c�c�c�c�c�c�c\ajMaru{5}} \\
\multicolumn{3}{@{}l@{}}{~\color{white}{\ajMaru{1}\ajMaru{5}���}} \\
\color{white}{$\mathrm{BA:AC}$} & \color{white}{$=$} & \color{white}{$\mathrm{BD:DC}$} \\
\end{tabular} \\
\hline
\end{tabular} 

\item ��̐�����p����$\mathrm{AB}=12$\ajLig{cm}�C$\mathrm{BC}=8$\ajLig{cm}�C$\mathrm{CA}=10$\ajLig{cm}�̂Ƃ�$\mathrm{CD}$�̒��������߂Ȃ����B

{\color{white}{$12:10=(8-\mathrm{CD}):\mathrm{CD}$}}

\vfill
\begin{flushright}
\begin{tabular}{|c|}
\hline
\hspace{30mm} \\[-8pt]
%$\mathstrut$ \\[-8pt]
$\mathrm{CD}=$~~~~~{\color{white}{$\dfrac{40}{\>11\>}$}}~~~\ajLig{cm} \\[-8pt]
\hspace{30mm} \\
\hline
\end{tabular}
\end{flushright}

\end{enumerate}

\end{enumerate}

\end{document}
