SOLUTION: the lateral area of a pyramid with a square base is 240 sq. ft. its base edges are 12 ft. long. what is the slant height of the pyramid?

Algebra ->  Surface-area -> SOLUTION: the lateral area of a pyramid with a square base is 240 sq. ft. its base edges are 12 ft. long. what is the slant height of the pyramid?      Log On


   

Question 393743: the lateral area of a pyramid with a square base is 240 sq. ft. its base edges are 12 ft. long. what is the slant height of the pyramid?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

lateral area of a pyramid = area of base + area of faces

 (240 - 144)/4 = 24  = (1/2)sh *12

                 48/12 = sh

                    sh = 4