To increase the area of a circle by 44%, by what percent should its radius be increased?

Options
- 22%
- 6.63%
- 20%
- 44%

CORRECT ANSWER : 20%

Discussion Board
answer breakup

new area = 1.44 pi r^2
= pi(1.2r)^2
therefore newradius is increased by = 0.2*100 = 20%

Vinay 02-8-2021 12:37 PM

Write your comments


Enter the code shown above:

(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)


Advertisement
 
▲