Question

if area of a circumference of a circle are numerically equal , then radius is equal to

Answer 1

Answer:

let the radius be r

area of circle =πr^2 sq units

perimeter of circle=2πr units

they are numerically equal then

πr^2=2πr

r=2

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Answer 2

Answer:

area = circumference

πr^2 = 2πr

r^2 = 2r

r =2