Question

Find the circumference of a circle whose radius is
2.5cm​

Answer 1

Answer:

$circumference = 2\pi \: r \: \\ = 2 \times \frac{22}{7} \: \: \times 2.5 \\ \\ = 15.71 \: cm$

Answer 2

Given:-

• Radius of a Circle = 2.5 cm

To find :-

• The Circumference of the Circle

Solution :-

Formula for Circumference of Circle :-

• 2πr

Let value of π be 3.14,

Therefore,

=> 2 × 3.14 × 2.5 cm

=> 6.28 × 2.5 cm

=> 15.7 cm

Hence,

The Circumference of the Circle is 15.7 cm.