Question

Radius of circle is 7 find the circumference of circle

Answer 1

To solve this problem, use formula of Circumference of circle. It is given as,

• Circumference of circle equal to 2πr, where 'r' is radius & π is 22/7 or 3.14

• Circumference of circle = Perimeter of circle

Given radius, (r) = 7 unit

• Calculate circumference of circle

$\implies{ \pmb{ \sf 2\pi r}} \\ \\ {\underline{ \pmb{ \tt{Substitute \: the \: value \: of \: radius(r)}}}} \\ \\ \implies \sf 2 \times \dfrac{22}{ \cancel 7} \times { \cancel{7}} \\ \\ \implies \sf 2 \times 22 \\ \\ \implies\sf 44\:unit \\ \\ \quad\therefore\sf Required \: circumference \: of \: circle \: {\pmb{\sf{ 44 \: unit}}}$

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Answer 2

Answer:

Circumference of circle is 43.96 .

Step-by-step explanation:

As per given information ,

Radius of circle is 7 .

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 .