Question

If circumference of a circle is 22πcm,then it's radius is

Answer 1

Circumference of circle=22π cm
2πr=22π
2r=22
r=22/2=11
So, radius = 11 cm.

Answer 2

Answer:

Radius of circle is 11 cm.

Step-by-step explanation:

Given -

Circumference of circle is 22π cm

To find -

The radius of circle

Solution -

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 given values in these formula we get ,

$22\pi = 2\pi \times r$

$\frac{22\pi}{2\pi} = r$

By dividing 22 by 2 we get

$\frac{11\pi}{\pi} = r$

As, π is present in numerator and denominator it get cancelled.

$r = 11$

So,

Radius of circle is 11 cm.