Rotating 28001

There is a rotating cone: r = 6.8 cm s = 14.4 cm. Find the area of the cone surface S2, the height h, and the volume V.

Correct answer:

S2 =  271.1649 cm2
V =  614.6405 cm3

Step-by-step explanation:

r=6.8 cm s=14.4 cm  s2 = h2 + r2  h=s2r2=14.426.8212.6933 cm  S2=π r h=3.1416 6.8 12.6933=271.1649 cm2
S1=π r2=3.1416 6.82145.2672 cm2 V=31 S1 h=31 145.2672 12.6933=614.6405 cm3



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