why is the slant height s = sqrt(2) - x . Please explain thoroughly how to find the slant height.
(Folding a pyramid) A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from 2 ft square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest volume the pyramid can have? Hint: The volume of a pyramid having base area A and height h measured perpendicular to the base is V = (1/3)Ah.
