RS Aggarwal - Mathematics

Book: RS Aggarwal - Mathematics

Chapter: 18. Area of Circle, Sector and Segment

Subject: Maths - Class 10th

Q. No. 8 of Exercise 18A

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8

Find the area of a circle whose circumference is 8π.

Given:

Circumference of circle = 8π


Circumference of a circle = 2πr


8π = 2πr


r = 4


Area of circle = πr2


Area of circle = π × 4 × 4


= 16π


Hence, the area of the circle is 16π.


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