if asphalt costs $0.78 per square foot, determine, to the nearest cent, the cost of paving the shaded circular road with center O, an outside radius of 50 feet, and an inner radius of 36 feet.

2 answers

1. A = pi ^ r^2
   
   A = 3.14 * 50^2
   A = 3.14 * 2500
   A = 7,850 square feet
   
   Find the area of the smaller circle. Then subtract the smaller area from the larger area. Multiply the difference by $0.78
   
   I'll be glad to check your answer.

   Answer ID
   528290

   Created
   April 9, 2011 8:26pm UTC

   Rating
   1

   URL
   https://questions.llc/answers/528290

2. 2590.33

   Answer ID
   1942516

   Created
   December 6, 2019 5:09am UTC

   Rating
   2

   URL
   https://questions.llc/answers/1942516