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因為正方形=3*三角形 所以三角形+正方形=三角形+3*三角形=4*三角形=48 所以三角形=48/4=12. 正方形=3*三角形=3*12=36. 圓=三角形/252=12/252=1/21. 此題目中的除如果理解為除以, 則:圓=252/三角形=252/12=21. 不然的話就得不到整數答案.
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