A square pyramid has 4 planes of symmetry. These planes pass through the center of the square base and connect the midpoint of each edge of the base to the apex of the pyramid. Each plane divides the pyramid into two congruent halves, reflecting the shape perfectly across the plane.
16
4
65
Two.
5
16
16
4
65
If it is a right pyramid then four, otherwise one or none.
4
Two.
Five
5
A heptagonal pyramid has a total of 8 planes of symmetry. There are 7 vertical planes of symmetry that each pass through one vertex of the heptagonal base and the apex of the pyramid. Additionally, there is 1 horizontal plane of symmetry that bisects the pyramid at the midpoint of the apex and the base.
it has 5 planes of symmetry
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.