Mathematics
Junior High
想問這題!
4. 如右圖(四),Li // L2 // L3。若AB=12,BC=8,DF=3x+3,EF=x+2,則:
(1) x=
。
(2) EF=
A
L₁
17
B
CX
圖(四)
EL2
L3
Answers
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