A triangle has 3 lines of symmetry.
A square has four lines of symmetry!
A square.
A square or rectangle
a regular square
parallelogram
Equilateral Triangles (3 lines of symmetry)Rectangles (at least 2 lines of symmetry)Squares (4 lines of symmetry)Rhombuses (at least 2 lines of symmetry)Any regular polygon (at least 5 lines of symmetry)
All triangles have less than 4 lines of symmetry.
It depends on how many sides that it has and whether of not it is regular (all the lines of the polygon are of equal length if it is a regular polygon). For regular polygons, the number of symmetry lines is the number of sides if number of sides is an odd number. Otherwise, the number of symmetry lines is double the number of sides. A square has 4 sides and 8 symmetry lines; a triangle has 3 sides and 3 symmetry lines.
Yes
A circle (infinitely many). A regular polygon with 4 or more sides.
A square has 4 lines of symmetry