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\begin{document}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\onecolumn {\Large\bf{�R�N���w�@�T�͖͂̏����\hfill No. 1}}\vskip10pt\hrule 

\qquad


\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad \BOXY{1}{0.6}{�@�g}\BOXY{1.3}{0.6}{�@�@��}\BOXY{7}{0.6}{���O�@\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad}

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�@���ɂ́C�c���2�ӂ̒������C��cm�ɂ���΂悢�ł��傤���B


\vspace{8cm}

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�@�̌�_��O�Ƃ��܂��B

�@AD=4cm�CBC=8cm

�@AC=6cm�ABD=9cm

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\vspace{3cm}



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\newpage

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�@AB=12cm�CCD=8cm�̂Ƃ��CEF

�@�̒��������߂Ȃ����B

\vspace{4cm}

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\vspace{5cm}

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�@�ł��B�܂��C�_G��DF��������������

�@��BC���������������̌�_�ł��B


\SubToi{\;\; DF�̒��������߂Ȃ����B}

\SubToi{\;\; BC=CG�ł��邱�Ƃ��ؖ����Ȃ����B}

\SubToi{\;\; FG�̒��������߂Ȃ����B}


\vspace{3cm}

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\newpage
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\onecolumn {\Large\bf{�R�N���w�@�T�͖͂̏����\hfill No. 2}}\vskip10pt\hrule 

\qquad


\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad \BOXY{1}{0.6}{�@�g}\BOXY{1.3}{0.6}{�@�@��}\BOXY{7}{0.6}{���O�@\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad}


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�@�����C�}�̂悤�ɁCA�CB�CC�����$\mrm{A'}$�C

�@$\mrm{B'}$�C$\mrm{C'}$�Ō�����Ă��܂��B���̂Ƃ��C

�@AB : BC = $\mrm{A'B'}$ : $\mrm{B'C'}$

�@�ł��邱�Ƃ��ؖ����Ȃ����B

\vspace{7cm}


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�@�@$\SANKAKU{OAC}\Sim\SANKAKU{OBD}$

�@�ƂȂ邱�Ƃ��ؖ����Ȃ����B

\vspace{2cm}

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\Toi�@��ʂ������ȉ~�ŁC������12cm�̉~����

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\vspace{6cm}


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�@�@AB : AC = BD : DC

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