Question

How do I find the slant height of a square pyramid? The base length is 4 inches and the area of it is 136 square inches. Thank you!

Answer 1

A = 2bs + b^2; where A = area of pyramid; b = base length; s = the slant height;
136 = 8s + 16 ;

8s = 120;

s = 15 inches;