Mathematics
Junior High
Resolved
🟥EGがなぜ2とわかるのかが、
わからないので教えてください🙇♀️
(4) AC と BD との交点をG とすると, AD: BC = 2:3より,EG:BC = 2:5
2
よって, EG = 30×
==
12
5
同様に,GF = 12より, x=12 × 2 = 24
+)
A
B
E
2
2
20
Q
-x
30
2
S
B
D
(AD//EF//BC)
F
C
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