圖(五)為一張方格紙，紙上有一灰色三角形，其頂點均位於某兩格線的交點上，若灰色三角形面積為平方公分，則此方格紙的面積為多少平方公分？ (A) 11(B) 12(C) 13(D) 14

問題詳情

20. 圖(五)為一張方格紙，紙上有一灰色三角形，其頂點均位於某兩格線的交點上，若灰色三角形面積為平方公分，則此方格紙的面積為多少平方公分？

(A) 11
(B) 12
(C) 13
(D) 14

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