Question

The difference between the circumference and radius of a circle is 37m.Find the area of circle.

Answer 1

Let radius of the circle be r
cm.
Then according to question,
2πr−r=37
=>r(2π−1)=37
=> r(44/7−1)= 37

r=37×7/37
=7cm
Area = πr^2
= 22/7 X 7 ^2
= 154cmsquare