Question

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

What is the value of the radius rounded to the nearest tenth?
What is the approximate area of the circle rounded to the nearest tenth?

Answer 1

2.4 m AND 18.4 m

Explanation:

2.4 and 18.4

Answer 2

Given that:

circumference of circle = 15 meters

π = 3.14

As we know that:

circumference of circle = 2 πr

By putting values:

15 = 2 (3.14) r

By simplifying:

15 = 6.28 r

Dividing both sides by 6.28 we get:

r = 2.39 meters

Now for finding area:

Area = π r^2

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

i hope it will help you!