five
7
7
4
A pentagonal pyramid has five planes of symmetry. It is comprised of five equilateral triangles forming a pyramid on a pentagonal base.
16
It has 1 hexagonal base and 7 faces (hexagonal base and 6 triangular planes that intersect at a point at the top). It is convex.
A pyramid, being three-dimensional, does not have linesof symmetry.Your question should really be "How many planes of symmetry does a pyramid have?"This answer may vary, depending on your definition of symmetry. But normally the answer "Four" is accepted.
4
A pentagonal pyramid has five planes of symmetry. It is comprised of five equilateral triangles forming a pyramid on a pentagonal base.
Five
5
The answer is 13- for more detail:
16
Two.
4
16
There are no lines of symmetry in a 3d figure.The right question is how planes of symmetry are there in a pentagonal pyramid.Then the correct answer is 5 planes of symmetry.
It has 1 hexagonal base and 7 faces (hexagonal base and 6 triangular planes that intersect at a point at the top). It is convex.
There are no lines of symmetry in a 3d figure.The right question is how planes of symmetry are there in a pentagonal pyramid.Then the correct answer is 5 planes of symmetry.