Rotating cone

Find the rotating cone's surface and volume if its side is 150 mm long and the circumference of the base is 43.96 cm.

Correct answer:

S =  483.482 cm2
V =  680.1455 cm3

Step-by-step explanation:

s=150 mm cm=150/10  cm=15 cm o=43.96 cm  r=o/(2π)=43.96/(2 3.1416)6.9965 cm s2=h2+r2 h=s2r2=1526.9965213.2684 cm  S1=π r2=3.1416 6.99652153.782 cm2 S2=π r s=3.1416 6.9965 15=329710=329.7  S=S1+S2=153.782+329.7=483.482 cm2
V=13 S1 h=13 153.782 13.2684=680.1455 cm3

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