来自解维华的问题
谁告诉我《三角形》《圆》《长方形》《梯形》的平方面积.公式也可
谁告诉我《三角形》《圆》《长方形》《梯形》的平方面积.公式也可
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2020-03-30 18:48
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宋娇
三角形的面积=底乘高除以2,
圆的面积约等于3.14乘半径的平方,
长方形的面积=长乘宽,
梯形的面积=（上底+下底）乘高除以2.
2020-03-30 18:52:28
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