Question

A copper pipe has an outside radius of 3 centimeters. The pipe is 200 centimeters long and the copper is 0.2 centimeters thick, so there is a cylindrical hole through the center of the pipe. What is the volume of the copper used to make the pipe

Answer 1

The volume of the copper used to make the pipe is 25.12 cm³.

To calculate the volume of the copper used to make the pipe, we use the formula below.

Formula:

• V = πht²................ Equation 1

Where:

• V = Volume of the copper
• h = Length of the copper pipe
• t = Thickness of the copper pipe
• π = Pie

From the question,

Given:

• h = 200 cm
• t = 0.2 cm
• π = 3.14

Substitute these values into equation 1

• V = 200(3.14)(0.2²)
• V = 25.12 cm³

Hence, the volume of the copper used to make the pipe is 25.12 cm³

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