Question

if the perimeter and area of the circle numerically equal then the radius of the circle is

Answer 1

r=2
as 2pir=pir^2
r=2pir/pir
r=2

Answer 2

Let the radius of circle be 'r'

perimeter of circle = 2πr

area of circle = πr^2

According to question,

perimeter of circle = area of circle

2πr = πr^2

2 = πr^2/πr

2 = r

Ans. radius of circle = 2 units