体积:
V=πR^2*H
=π*(0.4/2)^2*0.6
=0.075398224立方米
=75.4升
面积:
S=2*πR^2+2πR*H
=2*π*(0.4/2)^2+2π*(0.4/2)*0.6
=1.005平方米
即要1.005平方米的铁皮.
体积:
V=πR^2*H
=π*(0.4/2)^2*0.6
=0.075398224立方米
=75.4升
面积:
S=2*πR^2+2πR*H
=2*π*(0.4/2)^2+2π*(0.4/2)*0.6
=1.005平方米
即要1.005平方米的铁皮.