Question

A living room has a circular rug. According to a small tag, the rug has a circumference of 6.28 yards. What is the rug's area?

Answer 1

A = 3.14 yd^2

Explanation:

The circumference is given by

C = 2 * pi * r

Letting pi be approximated by 3.14

6.28 = 2 * (3.14) *r

6.28 = 6.28 r

Divide each side by 6.28

6.28/6.28 = 6.28r/6.28

1=r

We can find the area by

A = pi r^2

A = 3.14 (1)^2

A = 3.14