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.
Ah, a hexagonal pyramid is a beautiful shape indeed! It has 9 symmetry lines that run through its center, creating balance and harmony in its form. Just like painting a happy little tree, each symmetry line adds to the unique charm of the hexagonal pyramid.
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.