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# Geometric shape made of a rectangular base and four triangular faces. The volume of a pyramid is l*w*h/3, where l and h are the length and width of the base and h the height from the base to the apex (the point where the faces meet). # In Ancient Egypt, huge pyramids made of rocks were used as tomb?s for pharaohs. The Great Pyramid of Giza is one of the Seven Wonders of the World. |
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# Geometric shape formed by connecting a polygonal base and a point called the apex by triangular faces. When unspecified the base is usually assumed to be square. One of the platonic solids, the tetrahedron, is a triangular pyramid. The square and pentagonal pyramids can also be constructed with all faces regular, and so count among the Johnson solids. All pyramids are self-dual. The volume of a square pyramid is l*w*h/3, where l and h are the length and width of the base and h the height from the base to the apex. # In Ancient Egypt, huge pyramids made of rocks were used as tomb?s for pharaohs. The Great Pyramid of Giza is one of the Seven Wonders of the World. Other pyramid-shaped ancient monuments are found in Central America and parts of Asia. |
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