問題詳情
10. 附圖是兩全等的正方形 ABCD 與 APQR 重疊情形。若∠BAP＝30°， 
，則圖中灰色部分面積為何？
(A)48
(B)108－36 
(C)81－18
(D)48－16
參考答案
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