Question

If the perimeter of semi circular park is 72 m find its area and radius

Answer 1

Answer:

HOPE YOU WILL UNDERSTAND THIS

Answer 2

Answer:

The radius of the semi circular park is 14 meter.

The area of the semi circular park is 307.72 square meter.

Step-by-step explanation:

Given : If the perimeter of semi circular park is 72 m.

To find : The area and radius of the semi circle ?

Solution :

The perimeter of the semi circular park is $P=2r+\pi r$

We have given, P=72

$P=r(2+\pi)$

$72=r(2+3.14)$

$72=r(5.14)$

$r=\frac{72}{5.14}$

$r=14$

The radius of the semi circular park is 14 meter.

The area of the semi circular park is $A=\frac{\pi r^2}{2}$

$A=\frac{3.14\times 14^2}{2}$

$A=\frac{3.14\times 196}{2}$

$A=3.14\times98$

$A=307.72m^2$

Therefore, The area of the semi circular park is 307.72 square meter.