Surface area and volume

Find the surface area and volume of a rotating cone whose diameter is 60 mm and side length 3.4 cm.

Correct answer:

S =  60.3186 cm2
V =  15.0796 cm3

Step-by-step explanation:

D=60 mm cm=60:10  cm=6 cm s=3.4 cm  r=D/2=6/2=3 cm h=s2r2=3.4232=58=1.6 cm  S1=π r2=3.1416 3228.2743 cm2 S2=π r s=3.1416 3 3.432.0442  S=S1+S2=28.2743+32.0442=60.3186 cm2
V=31 S1 h=31 28.2743 1.6=15.0796 cm3



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