Question

The circumference of circles

Answer 1

circumference = 31.43 cm

Explanation:

circumference = 2πr = 2 × 22/7 × 5 = 220/7

= 31.43 cm

Answer 2

`\qquad\qquad\huge\underline{{\sf Answer}}♨`

Let's find the circumference of given circle ~

Circumference :

`\qquad \tt\dashrightarrow \:c =2 \pi r`

where,

• r = radius = 5 cm

now, let's calculate circumference ~

`\qquad \tt  \dashrightarrow \:c = 2 * \pi * 5`

`\qquad \tt  \dashrightarrow \:c = 10 \pi \: \: cm`

Now, let's plug in approximate value of pi :

`\qquad \tt  \dashrightarrow \:c = 10* 3.14 \: \:`

`\qquad \tt \dashrightarrow \:c = 31.4\: \: cm`