Mathematics
Junior High
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#國二 數學 1-1 乘法公式
) 6. 右圖為兩個相同的梯形所拼成之圖形,其面積為何?
(A) (a+b)(a-b)
(B) a²+2ab+b²
(C) a²-2ab+b²
(D) 2ab
EF
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