Question

The circumference of a circle is 154cm.Find the radius of the circle.​

Answer 1

Answer:

r = 7 cm

Step-by-step explanation:

2πr = 154cm

r = 154/2π

r= 77/π

r= 77*7/22

r= 7 cm

Answer 2

Answer:

Radius of circle is 24.52 cm.

Step-by-step explanation:

Given -

Circumference of circle is 154 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

$154 = 2\pi \times r$

$\frac{154}{2\pi} = r$

$\frac{77}{\pi} = r$

The value of π is 3.14 .

$\frac{77}{3.14} = r$

$r = 24.52$

So,

Radius of circle is 24.52 cm.