Posted by tmouery on Friday, March 8, 2013 at 11:04am.
A swimming pool is in the form of a semicircular figure. Its width is 20 ft. and that parallel portions of the sides are each 20 ft. What is the are of a 5ftwide walk surrounding the pool? Round to the tenths.

business math  Steve, Friday, March 8, 2013 at 11:35am
what "sides" of a semicircle are parallel? Do you mean the circle has a diameter of 20 ft? If the base is 20 ft, then that would be the diameter of the circle.
Assuming that, we have a pool with area 1/2 pi * 10^2 = 50pi ft^2
Increase the radius by 5 ft, and you have an area of 1/2 pi * 15^2 = 225/2 pi
So, the area of the walk is 125/2 pi = 196.4 ft^2
If I have interpreted the dimensions incorrectly, fix my error and redo the calculation.
Answer This Question
Related Questions
 Algaebra  A rectangular swimming pool is 5 feet longer than it is wide. If a ...
 Algebra  width W or a rectangular swimming pool is 7x^2. The area of the pool ...
 algebra 2  a swimming pool 50m by 25 m is to be built with a walkway w meters ...
 math  a rectangular swimming pool measures 20 feet by 40 feet. a walk of ...
 maths  A swimming pool has two identical sides in the shape of a trapezium. All...
 Math  A man built a walk of uniform width around a rectangular pool. If the ...
 UMass  'The rectangular swimming pool in the figure shown measure 40 feet by 60...
 Math  there is a swimming pool, 3 meters in width and 4 meters in length. the ...
 Math  A rectangular swimming pool is bordered by a concrete patio. The width of...
 Algebra  the length of bill's backyard swimming pool is 60ft longer than the ...
More Related Questions