Well, isn't that a happy little question! A square pyramid has 4 planes of symmetry - one vertical plane that goes through the apex and the center of the base, and three horizontal planes that cut through the pyramid at different heights. Just imagine all the beautiful reflections you could create with those symmetrical planes!
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.