A pentagonal pyramid has five planes of symmetry. It is comprised of five equilateral triangles forming a pyramid on a pentagonal base.
5
4
16
five
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.
A pentagonal what? A pentagonal pyramid or pentagonal prism have different numbers of vertices.
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.
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.
five, all looking from the top, one every 72o
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4
Five
5
16
Two.
4
16
five