Question

The radius of the circle is 30 inches. What is the area of the circle?

Answer 1

2827.43 square inches (rounded to nearest hundredth)

Explanation:

The area of the circle can be represented by π
`r^(2)`

Since the radius is 30 inches, substitute 30 for r in the formula

π
`30^(2)` = 900π

which is about 2827.43 square inches (rounded to nearest hundredth)

Answer 2

The e area of a circle is calculated by the formula A = πr^2,

In which A is the area and π is sometimes used as 3.14

Plug in 30 for the radius

A = πr^2 = π * 30^2 = 900

So, the area of the circle is approximately 900πsquare inches