問題詳情

如右圖,等腰梯形ABCD, %252522Image%252520071.png%252522.png,E,F分別為 %252522Image%252520072.png%252522.png 中點,試求塗色面積? %252522Image%252520075.png%252522.png 
(A)100
(B) 20
(A) %252522Image%252520073.png%252522.png 
(C)80
(D)  %252522Image%252520074.png%252522.png

參考答案

答案:C
難度:困難0.30198
統計:A(33),B(47),C(61),D(21),E(0)

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