how steep is the great pyramid
In this relationship the side (S) of the Great Pyramid, divided by twice the height (H) must equal p divided by four, i.e.: S / (2 x H) = p / 4. The slope angle, a, between the slope of the pyramid s side and the horizontal is given by tan a = 2 x H / S = 2 x 480 feet / 754 feet, such that a = 51.853318324... . This angle becomes extremely important in the construction of pyramids, great and otherwise, and we will return to it shortly.