Question

Find the exact area of the circle with the given radius.

r = 4.5 m

Answer 1

Do you know the formula for the area of a circle?

Answer 2

The area of a circle is calculated according to the formula below:

\(A = \pi r^2\)

where
A = area
\(\pi\) is a constant number that is approximately 3.14
r = radius of the circle

Answer 3

Your problem wants the exact area, so use the symbol \(\pi\) in your answer.
All you need to do is use the formula, and replace r with its value, 4.5 m.

Answer 4

\(A = \pi \times (4.5 ~m)^2\)