Question

2. Find the diameter of a circle whose circumference is 66 m.​

Answer 1

Answer :-

• The diameter of circle is 21m whose circumference is 66m.

Step-by-step explanation :-

To Find :-

• The diameter of circle

Solution :-

Given that,

• Circumference of circle = 66m

As we know,

Circumference of circle = 2πr,

=> 2πr = 66

=> 2 × 22/7 × r = 66

=> 44/7 × r = 66

=> r = 66 × 7/44

=> r = 6 × 7/4

=> r = 3 × 7/2

=> r = 21/2

=> r = 10.5

The radius of circle is 10.5m.

According the question,

The diameter of the circle, As we know that,

Diameter of circle = 2 × radius,

=> Diameter = 2 × 10.5

=> Diameter = 21m

Hence,

• The diameter of circle is 21m.