bifrustum

\right)^2+h^2} \\[2pt] & \ \ +\ n \frac{b^2}{2 \tan{\frac{\pi}{n} \end{align} | volume = n \frac{a^2+b^2+ab}{6 \tan{\frac{\pi}{n}h | angle = | dual = Elongated bipyramids | properties = convex | vertex_figure = | net = | net_caption =

Key facts

Polyhedron.name: Family of bifrusta
Polyhedron.image: Hexagonal bifrustum.png
Polyhedron.caption: Example: hexagonal bifrustum
Polyhedron.faces: -gons trapezoids
Polyhedron.surface_area: \begin{align} &n (a+b) \sqrt{\left(\tfrac{a-b}{2} \cot{\tfrac{\pi}{n

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Image: Pentagonal bifrustum.png

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Commons category: Bifrustum

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{{Infobox polyhedron | name = Family of bifrusta | image = Hexagonal bifrustum.png | caption = Example: hexagonal bifrustum | type = | euler = | faces = -gons trapezoids | edges = | vertices = | vertex_config = | schläfli = | wythoff = | conway = | coxeter = | symmetry = | rotation_group = | surface_area = \begin{align} &n (a+b) \sqrt{\left(\tfrac{a-b}{2} \cot{\tfrac{\pi}{n}}\right)^2+h^2} \\[2pt] & \ \ +\ n \frac{b^2}{2 \tan{\frac{\pi}{n}}} \end{align} | volume = n \frac{a^2+b^2+ab}{6 \tan{\frac{\pi}{n}}}h | angle = | dual = Elongated bipyramids | properties = convex | vertex_figure = | net = | net_caption = }}

In geometry, an -gonal bifrustum is a polyhedron composed of three parallel planes of -gons, with the middle plane largest and usually the top and bottom congruent.