Question

Find the circumference of the inner and the outer circle shown in the

adjoining figure. Take ( = 3.14)

Radius of the inner circle is 4cm

Radius of the outer circle is 7cm

I will give extra 60 points to user who answered fast​

Answer 1

Step-by-step explanation:

Given :-

Radius of inner Circle=4cm

Radius of outer Circle=7cm

.

Sol.:-

Radius of outer Circle=7cm

Circumference=2πr=2×3.14×7=.43.96

Radius of inner circle-->4cm

== >circumference=2πr=2×3.14×4=.25.12

hope it will help you dear

Answer 2

perimeter of inner circle=2πr=2×3.14×4=25.12cm

perimeter of outer circle=2πr=2×3.14×7=43.96cm