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## Tetrahedron - Wikipedia

en.wikipedia.org/wiki/Tetrahedron

The tetrahedron is one kind of pyramid, which is a polyhedron with a flat polygon base and triangular faces connecting the base to a common point. In the case ...

## A figure having a polygon base and triangular sides which meet in a ...

A figure having a polygon base and triangular sides which meet in a point at the ... tomb with a rectangular base and four triangular faces that meet at the top?

## What is a three-sided polygon called? | Reference.com

www.reference.com/math/three-sided-polygon-called-cfd1b251ec5cec9c

Polygons can have any number of sides, but they must be closed figures. ... A Figure Having a Polygon Base and Triangular Sides Which Meet in a Point at the  ...

## What is a five-sided polygon called? | Reference.com

www.reference.com/math/five-sided-polygon-called-90fe0bec3e9d817f

However, there are different types of five-sided polygons, such as irregular, ... A Figure Having a Polygon Base and Triangular Sides Which Meet in a Point at the  ...

## What is a five-sided polygon? | Reference.com

www.reference.com/math/five-sided-polygon-dd8c0b102187d7d8

A five-sided polygon, with five vertices and five angles, is called a pentagon. ... A Figure Having a Polygon Base and Triangular Sides Which Meet in a Point at ...

## What do you call a 20-sided polygon? | Reference.com

www.reference.com/math/call-20-sided-polygon-34b04b93b4a5b314

Along with having 20 sides, all icosagons have 20 interior angles that add up to ... A Figure Having a Polygon Base and Triangular Sides Which Meet in a Point ...

## What is a 5-sided polygon? | Reference.com

www.reference.com/math/5-sided-polygon-ac23d370568dc0fe

A five-sided polygon is called a pentagon. ... A Figure Having a Polygon Base and Triangular Sides Which Meet in a Point at the Top · Eleven Sided Polygon ...

## What is a six-sided polygon called? | Reference.com

www.reference.com/math/six-sided-polygon-called-278002d4592c2701

A polygon is an enclosed figure with straight lines that do not cross over one ... A Figure Having a Polygon Base and Triangular Sides Which Meet in a Point at ...

## Faces, Edges, and Vertices of Solids ( Read ) | Geometry | CK-12 ...

www.ck12.org/geometry/Faces-Edges-and-Vertices-of-Solids/lesson/Faces-Edges-and-Vertices-of-Solids-MSM7/

Dec 2, 2015 ... In the figure above, the base is a polygon and the top forms a vertex. ... to add to this since the top is the vertex where the triangular sides meet.