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[几何] 直角三角形内切圆与三角形面积

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isee posted 2018-6-28 16:25 |Read mode

直角三角形的内切圆与斜边的切点分斜边为3，4两段，求此直角三角形的面积。

PS: 改自南京2018中考数学最后一题主干.

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original poster isee posted 2018-7-19 13:47

回复 1# isee

$S=3\times 4=12$.

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