,
采纳
(3.14×100):(3.14÷360×X×2)=7:22×314=×7628=628/36000X×74396/36000×=628×=22608000/4396
(3.14*100):(3.14/360*x*2)=7:2314:(3.14/180*x)=7:2100:(1/180*x)=7:218000: x=7:218000/ x=7/27x=36000x=36000/7