Geometric term for a pyramid, a polyhedron with a polygonal base and triangular faces meeting at an apex.
The volume of a pyramid can be found from its base area and height.
truncated pyramid
Standard kanji spelling for a pyramid in geometry.
Mixed kana spelling sometimes used for readability or in educational contexts.
Compound of 角 (kaku, 'angle') and 錐 (sui, 'awl' or 'drill'), referring to a pointed shape with angular base.