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B. Cvetkov, 3043. Volume of a Triangular Pyramid, The Mathematical Gazette, Vol. 46, No. 358 (Dec., 1962), pp. 320-323 ...
A pyramid is a 3D shape with flat faces . The base of a pyramid is a polygon and is used to describe the pyramid (eg a square-based pyramid, triangle-based pyramid etc). Its sides are triangles ...
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