29. If radius of a circle is increased by 20%. What will the percentage increase
in area of the circle ?
(1)22%
(2)44%
(3) 42%
(4)5%
Answers
Answered by
1
Area is directly propotioal to radius ²
0.2 increase means 44% ...
Answered by
0
Answer:
44% is the correct answer.
Step-by-step explanation:
Let the radius of original circle =r
∴ Area of original circle =πr
But, the radius of the circle is increased by 20%
∴ Radius of new circle R= 44%
hope it helps you....
please mark me brainliest and click on thanks button and when this answer really helps you........
Similar questions