Mathematics
Junior High
「台形と面積比」
解説お願いします
図のABCD で, 四角形CDEF とABCDの面積比を求めよ。
図のABCD で, 四角形ABFGと四角形CDEGの面積比を求
めよ。
B
B
-8 cm.
10 cm.
-7cm
A-5 cm-E4 cm- D
2 cm
ELD
25
-2 cm
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