Pyramidal Frustum
Let 
be the slant height, 
the top and bottom base Perimeters, and 
the top andbottom Areas. Then the Surface Area and Volume of the pyramidal frustum are given by
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See also Conical Frustum, Frustum, Pyramid, Spherical Segment, Truncated Square Pyramid
References
Beyer, W. H. (Ed.) CRC Standard Mathematical Tables, 28th ed. Boca Raton, FL: CRC Press, p. 128, 1987. Dunham, W. Journey Through Genius: The Great Theorems of Mathematics. New York: Wiley, pp. 3-4, 1990.
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