来自高伟的问题
等边△ABC的边长为a,求其内切圆的内接正方形DEFG的面积.
等边△ABC的边长为a,求其内切圆的内接正方形DEFG的面积.
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2020-12-07 02:53
等边△ABC的边长为a,求其内切圆的内接正方形DEFG的面积.
等边△ABC的边长为a,求其内切圆的内接正方形DEFG的面积.
等边△ABC的边长为a,
∵点O为△ABC的内心,
∴OE⊥AB,AE=BE=a2