Question

the circumference of a circle with radius 7cm is

Answer 1

Circumference of circle
$= 2\pi \: r$
Now,
$\pi \: = 22 \div 7 \\ and \: r = 7cm$
so, circumference of circle
$= 2 \times 22 \div 7 \times 7 \\ = 44cm$
Hope it helps

Answer 2

Answer:

Circumference of circle is 43.96 cm.

Step-by-step explanation:

As per given information ,

Radius of circle is 7 cm.

We have to find out the circumference of circle.

The circumference means the length of the complete arc of a circle.

As we know that,

Circumference of circle = $2 \times \pi \times r$

Where,

r is a radius of circle.

Put the value of r ,

Circumference of circle = $2 \times \pi \times 7$

Circumference of circle = $14\times \pi$

Put the value of π = 3.14

Circumference of circle = $14\times 3.14$

Circumference of circle = $43.96$

Hence,

Circumference of circle is 43.96 cm.