find the ratio?

2016-12-28 6:19 pm

回答 (1)

2016-12-28 10:01 pm
✔ 最佳答案
Sol
設AB=6x
PD:GH=AD:AH=1:3
PD:6x=1:3
PD=2x
EQ=2PE=4x
四邊形ABCP面積:四邊形DPQE面積
=(AB+CP)*BC/2:(DP+EQ)*CF/2
=AB+CP:DP+EQ
=(6x+4x):(2x+4x)
=5:3
(C)


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