Question

what is the radius of circle if area is 72 cm​

Answer 1

Step-by-step explanation:

Radius of quadrant =

2

7

cm

Perimeter of quadrant = length of arc +(2× radius)

=(

4

1

×2πr)+2×

2

7

=(

4

1

×2×

7

22

×

2

7

)+7

=

7

11

+7

=5.5+7

=12.5 cm