Question

A right circular cone has a volume of 247 cubic

inches. If the height of the cone is 2 inches, what
is the radius, in inches, of the base of the cone?
A) 2/3
B) 6
C) 12
D) 36

Answer 1

Answer:10.9 inch

Explanation:

Volume=247

Height(h)=2

π=3.14

Radius=r

Volume=(π x r^2 x h) ➗ 3

247=(3.14 x r^2 x 2) ➗ 3

Cross multiplying we get

247x3=(6.28r^2)

741=6.28r^2

Divide both sides by 6.28

741/6.28=6.28r^2/6.28

r^2=117.994

r=√(117.994)

r=10.9