Illustration of a square bifrustum created by three parallel planes of squares with the middle plane largest. The top and bottom squares are congruent. It can be the combination of two congruent frustums across a plane of symmetry, or as a bipyramid with truncated vertices.
Keywordspyramid, square, squares, pyramids, frustum, bipyramids, parallel planes, frustums, square bifrustum, bifrustum, truncated bipyramid
Florida Center for Instructional Technology Clipart ETC (Tampa: University of South Florida, 2007)