The square pyramid has base side lengths of 12 centimeters and a slant height of 15 centimeters. What is the total surface area of the pyramid?
The base of the pyramid is a square, so its area is found by: Area = s2 = 122
Each of the sides is a triangle, so its area is found by: Area = ½·b·h = ½·12·15
(the slant height of the pyramid is the height of each of its sides)
To find the total area, add the area of the base to the area of its 4 sides.