一个圆形花坛的直径是8米,在它的四周铺一条2米宽的小路,这条小路面积是______平方米.
人气:369 ℃ 时间:2020-03-31 01:31:43
解答
根据分析可得:
8÷2=4(米),4+2=6(米),
3.14×(62-42),
=3.14×(36-16),
=3.14×20,
=62.8(平方米).
答:这条小路的面积是28.26平方米.
故答案为:62.8.
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