What is the volume of this square pyramid? 1296 cm³ 1620 cm³ 3888 cm³ 11,664 cm³ A square pyramid with height of twelve centimeters, base side length of eighteen centimeters and slant height of fifteen centimeters. The distance from center of base to the middle of the edge of one side of the base is nine centimeters. The sides with lengths nine, twelve and fifteen centimeters form a right triangle.