Mathematics
Junior High
Solved
この式が途中で(IK+JK)になるのはなぜですか。
XBHXIK+XBHX J K
=×BHX (IK+JK) = × BH× I J
=1/2×5×IJ=122IJ (cm²)と表せる。
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わかりやすいです🥹
ありがとうございます!!