1. a circular swimming pool has a diameter of 60 feet, and is surrounded by a concrete sidewalk that is 5 feet wide. what is the area of the sidewalk? round to the nearest square foot. correct area of the pool and surrounding sidewalk: 4 points correct area of the pool water surface: 3 points correct area of the side walk: 1 point sentences explaining the process used:

We first calculate the area of the entire pool and the side walk.

Given that the pool has a diameter of 60 feet and that the side walk surrounds the pool with a width of 5 feet. This means that the diameter of the entire pool and the side walk is 60 + 5 + 5 = 70 feet and the radius is 70 / 2 = 35 feet

Thus the area of the entire pool and the side walk is obtained as follows:



Given that the pool has a diameter of 60 feet, this means that the radius of the pool is 30 feet.

Thus the area of the pool is given by:



Therefore, the area of the sidewark is the area of the entire pool and side walk minus the area of the pool, this is given by:

put like terms together.orremember that the 45 becomes negative when moved to the other side.orthe minuses cancel out.