Question

The volume of a cone is 80π cubic inches. The height of the cone is 15 inches. What is the radius of the cone, rounded to the nearest inch? Use π=3.14 .

16 inches
8 inches
6 inches
4 inches

Answer 1

the answer is 4 inches I did the exam :)

Explanation:

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Answer 2

• Answer:

4 inches

• Explanation:

Hi there !

Volume (cone) formula

`V=(1)/(3)Ab*h\\ \\Ab=\pi*r^(2)`

`V=(\pi*r^(2)*h)/(3)`

`3V=\pi *r^(2)*h\\\\r^(2)=(3V)/(\pi*h)`

replace

r² = 3×80π/15π

r² = 240/15

r² = 16

r = √16

r = 4 inches

Good luck !