Question

What is the volume of a cone if the diameter is 5 and the height is 13?

Answer 1

Answer: D.

Explanation:

V(cone)=(1/3)
`\pi r^(2) h` they gave diameter=5 but radius is half of that

r=2.5 h=13

V(cone)=
`(1/3)\pi (2.5)^(2) 13` to get an answer like the choices. multiply everything in calculator except pi

so

V(cone)=27.083
`\pi`

Answer 2

volume = 85.095cm³

Explanation:

Volume of cone is ¹/³ πr ²h

volume = ¹/³ x 3.142 x (2.5)² x 13

volume = 85.095cm³