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\begin{enumerate}
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\item ����\fbox{�@�@}�ɓ��Ă͂܂錾�t�܂��͎����L�����Ȃ����B
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\item ����$\mathrm{AB}$�ƒ���$\mathrm{CD}$�������Ƃ��C�����_��$2$������\fbox{~\ajMaru{1}~}�Ƃ����܂��B������Ăł���p�����p�ł���Ƃ��C$2$�����͐����ł���Ƃ����C�L�����g����\fbox{~\ajMaru{2}~}�Ə����܂��B
�܂����̂Ƃ��C����̒����𑼕��̒�����\fbox{~\ajMaru{3}~}�Ƃ����܂��B

\item �������ʏ�ɂ���$2$����$\ell\>,\>m\>$�𓯂������ɂǂ��܂ŉ��΂��Ă������Ȃ��Ƃ��C
$2$�����͕��s�ł���Ƃ����C�L�����g����\fbox{~\ajMaru{4}~}�Ə����܂��B

\item $1$�̓_�𒆐S�Ƃ���$180^{\circ }$��]����Ƃ��C���̐}�`�ɂ҂�����d�Ȃ荇���}�`��\fbox{~\ajMaru{5}~}�Ȑ}�`�Ƃ����܂��B
���̂Ƃ��̒��S�ƂȂ�_��\fbox{~\ajMaru{6}~}�Ƃ����܂��B

\item ����$\mathrm{AB}$��ŁC�_$\mathrm{A}$�C$\mathrm{B}$���瓙���������ɂ���_$\mathrm{M}$�����$\mathrm{AB}$��\fbox{~\ajMaru{7}~}�Ƃ����܂��B

\item �~���̈ꕔ�����ʂƂ���2�_$\mathrm{A}\>,\>\mathrm{B}$�𗼒[�Ƃ���ʂ��L���ŕ\����\fbox{~\ajMaru{8}~}�ƂȂ�܂��B
�܂��~�����2�_$\mathrm{A}\>,\>\mathrm{B}$�����Ԑ�����\fbox{~\ajMaru{9}~}�Ƃ����܂��B

\item �~�ƒ����ɋ��ʂȓ_��������̂Ƃ��C�~�ƒ�����\fbox{~\ajMaru{10}~}�Ƃ����C���̓_��ړ_�Ƃ����܂��B

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\item ���̐}��$\angle \mathrm{ABC}=30^{\circ}$�ƂȂ�悤�ɍ�}���Ȃ����B

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