Question

A circular plate has circumference 18.2 inches. What is the area of this​ plate? Use 3.14 for pi.

Answer 1

26.22in²

Explanation:

First get the radius using the formula of a circumference.

C = 2πr = 18.2

2(3.14)r = 18.2

6.28r = 18.2

Divide both sides by 6.28 to get r

r = 2.89

Now get the area of a circle using the formula:

A = πr²

A = 3.14(2.89)²

A = 3.14(8.35)

A = 26.22in²