Question

A pipe has a length of 21 cm, an internal diameter of 6.5 cm and a thickness of 0.5 cm . What is the volume?

Answer 1

Answer:

This is your answer.

I hope this will help you....

Answer 2

Answer:

231 cm^3

Step-by-step explanation:

Length of pipe = 21 cm

Internal diameter = 6.5 cm

Internal radius = 6.5/2 = 3.25 cm

Thickness =0.5 cm

Outer radius = 3.25+0.5 = 3.75 cm

Volume of pipe =pi R^2 h - pi r^2 h

Volume of pipe = (22/7) * (3.75)^2 * 21 - (22/7) * 3.25 ^2 * 21

= 928.125 - 697.125 = 231 cubic cm