I am a polyhedron with a total of nine faces. My eight lateral faces are isosceles triangles, all alike. My BEST name is:
A) nine-gon.
B) octagonal pyramid.
C) nine-gonal pyramid.
D) octagonal prism.
E) regular octagonal pyramid.
F)Triangular pyramid.

Question

Quizplus · Accepted Answer

A polyhedron with nine faces, where eight are isosceles triangles and one base, is best described as a regular octagonal pyramid. The base is an octagon, and the lateral faces are triangles, making it a pyramid, not a prism or a simple polygon (nine-gon). The term "regular" indicates that the base is a regular octagon and the lateral faces are congruent isosceles triangles.

I Am a Polyhedron with a Total of Nine Faces