Question

The circumference of a circle is 15 meters. Find the area. Use 3.14 for π.

Answer 1

$\bold{ANSWER:}$

a = 17.9 meters^2

$\bold{EXPLANATIONS:}$

Given that:

• circumference of circle = 15 meters
T= 3.14

As we know that:

• circumference of circle = 2 nr

By putting values:

•15 = 2 (3.14) r

By simplifying:

• 15=6.28r

Dividing both sides by 6.28 we get:

• r= 2.39 meters

Now for finding area:

• Area = 1 r2

Putting values:

• Area = (3.14) (2.39)*2

By simplifying we get:

• Area = 17 .935 meters’2

So by rounding off radius to nearest tenth:

• radius =r=2.4 meters

Rounding off area to nearest tenth:

• area =a = 17.9 meters’2