Rotating cone

The rotating cone has a base diameter of 18 dm and a height of 12 dm. Calculate the volume V.

Correct answer:

V =  1017.876 dm3

Step-by-step explanation:

D=18 dm h=12 dm  r=D/2=18/2=9 dm S=π r2=3.1416 92254.469 dm2  V=31 S h=31 254.469 12=1017.876 dm3

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