Question

Volume of Hollow cylinder?​

Answer 1

Step-by-step explanation:

Let the radius of the larger base be R and that of the smaller be r

Then volume of hollow cylinder =π(R+r)(R-r)h

TSA of a hollow cylinder =π(R+r)(h+R-r)

Answer 2

here is your answer mate :

The hollow cylinder, also called the cylindrical shell, is a three-dimensional region bounded by two right circular cylinders having the same axis and two parallel annular bases perpendicular to the cylinders' common axis. It's easier to understand that definition imagining e.g. a drinking straw or a pipe - the hollow cylinder is this plastic, metal, or other material part. The formula behind the volume of a hollow cylinder is: cylinder_volume = π * (R² - r²) * cylinder_height

where R - external radius, and r - internal radius

To calculate the volume of a cylindrical shell, let's take some real-life example, maybe... a roll of toilet paper, because why not? :)

Enter the external radius of the cylinder. The standard is equal to approximately 5.5 cm.

Determine the internal cylinder radius. It's the internal radius of the cardboard part, around 2 cm.

Find out what's the height of the cylinder, for us it's 9 cm.

Tadaaam! The volume of a hollow cylinder is equal to 742.2 cm3.

Remember that the result is the volume of the paper and the cardboard. If you want to calculate how much plasticine you can put inside the cardboard roll, use the standard formula for the volume of a cylinder - the calculator will calculate it in the blink of an eye!

hope it helps babe