4
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 pentagonal pyramid has five planes of symmetry. Each plane of symmetry passes through the apex of the pyramid and divides the pyramid into two equal halves. These planes of symmetry can be visualized as slicing the pyramid vertically or diagonally in different orientations to create mirror images.
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
Two.
Five
5
16
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.
The answer is 13- for more detail:
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.
If it is a right pyramid then four, otherwise one or none.