Answer:
490.9 square feet.
Explanation:
We have been given that a contractor is building the base of a circular fountain. The base of the fountain has a diameter of 25 feet. We are asked to find the area of the base of the fountain.
We will use area of circle formula to solve our given problem.
, where r represents radius of circle.
We know that diameter is 2 times radius, so radius of the base of fountain would be half the diameter.




Upon rounding our answer to nearest tenth, we will get:

Therefore, the area of the base of the fountain would be 490.9 square feet.