圆锥高度为36cm
L=3.14*2*50=314m
S=L*2=628m^2
G=7.8*0.001*(3.14*10*10*200)=489.84KG
d=3.6/(1.2*0.1)*3/4=22.5m
L=3.6/(1.2*0.1)*1/4=7.5m
圆锥高度为36cm
L=3.14*2*50=314m
S=L*2=628m^2
G=7.8*0.001*(3.14*10*10*200)=489.84KG
d=3.6/(1.2*0.1)*3/4=22.5m
L=3.6/(1.2*0.1)*1/4=7.5m