The lateral face of a pyramid is a ___.
Which of the following shapes can be formed by the lateral faces of a square pyramid?
A pyramid is a polyhedron whose base is a polygon and whose lateral faces are triangles with a common vertex.
The angle opposite to the base edge of a square pyramid on its lateral face is 30∘. If the slant height of the pyramid is 20cm, what is the lateral surface area of the pyramid? (Note that tan15∘=0.268)
The angle opposite to the base edge of a square pyramid on its lateral face is 60∘. If the slant height of the pyramid is 40cm, what is the lateral surface area of the pyramid?