Question

The area of the curved surface of a cylindrical can is 162 π square centimeters and it’s height is 9 centimeters. What is the diameter of the can?

Answer 1

Diameter of the can = 18 Cm

Explanation:

Given:

Curved surface of cylindrical can = 162
`\pi`

Height of cylindrical can = 9 Cm

Find:

Diameter of the can = ?

Computation:

Curved surface of cylindrical can = 2
`\pi`rh

`162\pi = 2\pi rh\\\\(162\pi )/(2\pi )= r* 9\\\\81 = r* 9\\\\(81)/(9)=r`

`r=9 Cm`

Diameter of the can = 2×r

Diameter of the can = 2×9 Cm

Diameter of the can = 18 Cm