how many limes of symetry are found in a regular polygon with 20 sides
A.20
B.40
C.60
D.80
The number of lines of symmetry in a regular polygon with n sides is equal to n if n is even, and n/2 if n is odd.
In this case, the regular polygon has 20 sides, which is even.
Therefore, the number of lines of symmetry is 20.
Therefore, the answer is A. 20.