Question

the ratio of the circumference of circle is 2:7. find its circumference​

Answer 1

Here is your answer mate...✌✌

Solution -

Area of the Circle (A) = πr²

Circumference of the Circle (C) = 2πr

Ratio of the C to A = 2:7

∴ 2πr/πr² = 2/7

⇒ 2/r = 2/7

∴ r = 7

∴ Circumference of the Circle = 2πr

= 2π (7)

= 14π