有一个圆形木板,周长是376.8cm,如果把它锯成一个最大的正方形,这个正方形的面积是多少厘米?
人气:206 ℃ 时间:2019-12-13 06:04:15
解答
376.8÷3.14=120(cm)
120÷2=60(cm)
120x60÷2x2=7200(平方厘米)
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