To find the length of the edge of the square base of the Pyramid, we can use the Pythagorean theorem, which states that a² + b² = c², where a and b are the legs of a right triangle and c is the hypotenuse.
Given that the height is 321 ft and the slant height is 436.5 ft, we can calculate the length of the edge of the square base as follows:
Let x be the length of the edge of the square base.
Using the Pythagorean theorem:
x² + 321² = 436.5²
x² + 103041 = 190630.25
x² = 87460.25
x = √87460.25
x ≈ 295.7 ft
Therefore, the length of the edge of the square base of the Pyramid is approximately 295.7 ft.