有一个环形,内圆的周长是31.4CM,外圆的周长是41.7CM,圆环的款是多少米?
问题描述:
有一个环形,内圆的周长是31.4CM,外圆的周长是41.7CM,圆环的款是多少米?
答
41.7÷3.14÷2-31.4÷3.14÷2=6.64-5=1.64cm
有一个环形,内圆的周长是31.4CM,外圆的周长是41.7CM,圆环的款是多少米?
41.7÷3.14÷2-31.4÷3.14÷2=6.64-5=1.64cm