Question

a copper wire in the formof a circle enclosed an area of 616​

Answer 1

Explanation:

i hope this will help you

Answer 2

Explanation:

Area of the square=484cm

2

∴ Side of the square =

484

=22cm

⇒ Perimeter of the square =4×22=88cm

∵ (Circumference of the circle) = (perimeter of the square)

⇒2πr=88

⇒2×

7

22

×r=88

∴r=

2×22

88×7

=14cm

∴ Area of the circle =πr

2

=

7

22

×14×14cm

2

=616cm

2