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Julia is making a mold for creating cone-shaped candles. She starts with a cylindrical piece of wood and carves out a cone-shaped section. What is the approximate volume of the solid portion of the mold? Use 3.14 for π.

Julia is making a mold for creating cone-shaped candles. She starts with a cylindrical-example-1

1 Answer

7 votes

Answer:

395.64
inches^(3)

Explanation:

We would take the volume of the cylinder and subtract out the cone.

Cylinder:

a =
\pi r^(2)h

a = (3.14)(
3^(2))(18)

a = 508.68

Cone:

a =
(1)/(3)
\pi r^(2)h This is 1/3 of the cylinder that would encase the cone.

a =
((3.14)(9)(12))/(3)

a = 113.04

Subtract the cone from the cylinder to find the solid part of the mold.

508.68 - 113.04 = 395.64

Helping in the name of Jesus.

User Mistwalker
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