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Can someone help me with 10 math questions (:


A cone has a radius of 5 inches and a height of 18 inches.


What is the exact volume of the cone?


A.

150π in3


B.

300π in3


C.

450π in3


D.

540π in3

Verified Answer :

apologiabiology

so volue of a cone=1/3 times (area of base[which is a circle]) times height

area of base=area of circle=pi time radius^2
area=pi times 5^2
area=pi times 25=25pi

1/3 times 25pi times 18
25pi times 18 times 1/3
25pi times 18/3
25pi times 6=150pi


the answer is 150π in^3 or 150π cubic inches or C

( to solve, aprox pi to 3.141592 an multiply 150 by 3.141592=471.239 in^3)

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