Answer:9
Step-by-step explanation:
Square root of 81 is9.
The volume of the cylinder will be 900π cube cm.
Step-by-step explanation:
Given,
The volume of the cylinder 225π cube cm
Let the radius be r and the height be h.
To find the volume when the radius is doubled.
Formula
The volume of cylinder = π
According to the problem,
π = 225
When the radius is 2r the volume will be = π
=4π
=4×225π cube cm
= 900π cube cm
The percent of the book that the chapter makes up is ten percent