Question 479163: What is the area of the net that folds to make this square pyramid?
Perpendicular Height = 8cm
Base = 9cm Answer by ccs2011(207) (Show Source):
You can put this solution on YOUR website! Basically they are asking for the surface area of this square pyramid.
where B is area of base, P is perimeter of base, l is slant height.
Area of base = 9*9 = 81
Perimeter of base = 4*9 = 36
Slant height can be found using Pythagorean theorem:
where slant height is the hypotenuse, the vertical height is one leg, and half the length of a side of base is other leg.
Now compute surface area:
