Question

A tube of length 20cm with inner radius of 3cm and outer radius of 5cm. Use 3.142 for pi

Answer 1

and the question is... find the volume of the tube??

Answer 2

yea

Answer 3

first find the volume of the whole tube, as though where no hole in it

then find the volume of what a rod would be if it were the radius of the inner radius

then, subtract the second value from the first and you have the volume of the tube