A square pyramid consists of a square which is usually called its base. To each side of the square is attached a triangular face whose base is the same length as the side of the square, and such that the third (free) vertices of the triangles meet at an apex above the square.
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(1/3)Bh, that is, 1/3 times the base area times the height, where the height must be perpendicular to the base.
Six
5 faces
square
4 at the base and 1 at the top