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