Mathematics
Junior High
Solved
答えは7分の29なんですけど、自分は7分の43になってしまいました。解説お願いします🙏
BD 20. DCE+
-SI
9) AD // EF // BC AE:EB=4:3
9cm D
A
G
HA ti
E
H
xcm
F
B
14cm
C
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