Question

find the diameter of circle whose circumfremce is 121 cm
answer briefly​

Answer 1

I hope this is helpful to you......

Answer 2

Answer:

circumference of a circle = perimeter of the circle

therefore, circumference of a circle = 121cm

= 2πr =121 cm

=2×22/7×r =121 cm

= r = 121×7/22×2

= r = 77/4

therefore, diameter = 2×77/4 =38.5 cm