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17.兩股長的和為20公分的直角三角形中,面積最大為多少平方公分?(A) 50 (B) 100 (C) 120 (D) 150
問題詳情
17.兩股長的和為20公分的直角三角形中,面積最大為多少平方公分?
(A) 50
(B) 100
(C) 120
(D) 150
參考答案
答案:A
難度:
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設此直角三角形一股長為x,則另一股長為(20...
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