Let V(x, y, z) represent the volume of frustum of a square pyramid whose top side length is x, bottom side length is y, and height is z. V(x, y, z) is a cubic expression of x, y, z. Here, as a restrictive condition, we assume that it is known that the exponents on x, y and z in the formula of V(x, y, z) are zero or positive integers. Due to this restrictive condition, only the 10 terms x³, y³, z³, xy², xz², yx², yz², zx², zy², and xyz) need to be considered in the formula of V(x, y, z).

frustum of a square pyramid, restrictive condition.

Received: November 14, 2023; Accepted: December 2, 2023; Published: December 9, 2023

How to cite this article: Chuya Fukuda, The volume of frustum of a square pyramid identified under restrictive condition, Far East Journal of Mathematical Education 25 (2023), 71-72. http://dx.doi.org/10.17654/0973563123018

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