Question

• Find the diameter of a circle whose circumference is
66cm.

​

Answer 1

Answer:

2πr= circumference of circle

2*22/7*r=66

r=66/22*7/2

r=10.5 cm

d=2r

d= 21 cm

Answer 2

Step-by-step explanation:

Let the diameter of a circle be d m

Given circumference of the circle is 66 m

⟹πd=66

⟹

7

22

×d=66

⟹d=

22

66×7

=21 m

So the diameter is 21 cm

Hope it will help you.