Question

The outer and inner radii of a hollow cylinder are 8 cm and
7 cm respectively. If the height of the cylinder is 35 cm,
find the volume of the metal used in this cylinder.​

Answer 1

Step-by-step explanation:

• volume of cylinder = volume with respect to outer radius -volume of cylinder with respect to inner radius .
• πR^2h - πr^2h
• πh(R^2-r^2)
• where R is the outer radius
• r is inner radius

Given =

• outer radius =8cm
• inner radius =7cm
• height = 35cm

To be find=

• Volume of metal used to make it...

Solution =

»πh(R^2-r^2)

» 3.14×35×(8+7)(8-7)

»3.14×35×15×1

»1648.5 cm^3

• Hope this will help you