Pentagonal Prism
what is the perimeter of a pentegon?
It is a Pentegon
five
No, a pentagon is not a parallelogram.
What is the 3d name for octagon
A 3d trapezium (not trapesium) does not have a specific name.
there is no such thing as an eight sided pentagon. You must mean a eight sided polygon. Which is an octagon.
There are no words in the English language that begin with the letters PENTEGON. Pentagon, pentagonal and pentagons are words that begin with the letters PENTAGON.
Yes, a pentagon is a polygon.
No, a hexagon cannot be a pentagon.
Yes.
A 3D name for a pentagon is a pentagonal prism.