Pronunciation: /ˌpɛntəˈhidrən/ Explain
|Figure 1: Square pyramid. Image courtesy Wikipedia.org.|
|Manipulative 1: Triangular Prism Created with GeoGebra.||
A pentahedron is a five sided
There is no regular pentahedron. There are two pentahedrons that can exist in
One is a square pyramid (see figure 1). The other is a triangular prism. Click on
the blue points in manipulative 1 and drag them to change the figure.
A geometric net
is a shape that can exist in 2-space, which can be folded
into a polyhedron. Click on the name of the net to download a printable net you can
cut out and decorate.
A triangular prism has identical triangles as base and top
with straight sides.
A square pyramid has a square bases with straight sides
that come to a point.
Irregular Pentahedron Net
Manipulative 1 is an irregular pentahedron net you can change, print out, and put
together. Click on the blue points to change the net. If any part of the net
disappears or any of the lines cross, you have created a net that can not be
Manipulative 1: Irregular Pentagon Net. Created with GeoGebra.
- McAdams, David E.. Polyhedron. allmathwords.org. All Math Words Encyclopedia. Life is a Story Problem LLC. 3/12/2009. http://www.allmathwords.org/en/p/polyhedron.html.
Cite this article as:
McAdams, David E. Pentahedron. 8/7/2018. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/p/pentahedron.html.
8/7/2018: Changed vocabulary links to WORDLINK format. (McAdams, David E.)
9/25/2008: Initial version. (McAdams, David E.)