Question

if the area of a circle is 50. 24 m square find its circumference

Answer 1

area = 50.24
formula of area
$\pi { r}^{2}$
now,
πr2 =50.24
3.1 × r2 = 50.24
r2 =2.6now., formula of circumference
$2\pi |r|$
then,
2 × 3.1 ×0.5
3.1

Answer 2

Given:

Area of a circle is 50. 24 m square

To Find:

find its circumference

Solution:

Let the radius of circle be r

So, Area of circle = $\pi r^2$

We are given that area of a circle is 50. 24 m

So, $\pi r^2 = 50.24 \\3.14 \times r^2 = 50.24\\r = \sqrt{\frac{50.24}{3.14}}$

r = 4

Circumference of circle = $2 \pi r = 2 \times 3.14 \times 4 =25.12 m$

Hence The circumference of circle is 25.12 m