Question

find the circumference of the inner and the outer surface swon in the given figure take pie = 3.14​

Answer 1

Step-by-step explanation:

Circumference of outer circle = 2pir

= 2 × 3.14 × 12.5

= 12.5 × 6.28

= 78.5 m

Circumference of inner circle = 2pir

= 2 ×3.14 × 4

= 6.28×4

=25.12

I hope this helps you