一个等边三角形的边长是九分之五m,它的周长是多少米?
一个等边三角形的边长是九分之五m,它的周长是多少米?
数学人气:362 ℃时间:2019-10-29 17:43:18
优质解答
九分之五乘以三 等于三分之五 米
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