Here my dog "Flame" has actually her face made perfect symmetrical with a bitof photo magic.

The white line down the facility is present of Symmetry

When the folded component sits perfect on peak (all edges matching), then the wrinkles line is a line of Symmetry.

Here I have folded a rectangle one way, and it didn"t work. So this is not a heat of Symmetry

But once I try it this way, the does work (the folded component sits perfect on top, every edges matching): So this is a heat of Symmetry

## Triangles

A Triangle can have 3, or 1 or no lines of symmetry:  Equilateral Triangle(all sides equal, all angle equal) Isosceles Triangle(two political parties equal, two angles equal) Scalene Triangle(no sides equal, no angle equal) 3 present of Symmetry 1 heat of Symmetry No currently of Symmetry

Different types of quadrilateral (a 4-sided aircraft shape):  Square(all sides equal, all angle 90°) Rectangle(opposite political parties equal, all angle 90°) Irregular Quadrilateral 4 lines of Symmetry 2 lines of Symmetry No present of Symmetry  Kite Rhombus(all sides same length) 1 heat of Symmetry 2 present of Symmetry

## Regular Polygons

A consistent polygon has all sides equal, and all angles equal:

 An Equilateral Triangle (3 sides) has 3 currently of Symmetry A Square (4 sides) has 4 lines of Symmetry A Regular Pentagon (5 sides) has 5 present of Symmetry A Regular Hexagon (6 sides) has 6 currently of Symmetry A Regular Heptagon (7 sides) has 7 present of Symmetry A Regular Octagon (8 sides) has 8 lines of Symmetry

And the pattern continues:

A constant polygon of 9 sides has actually 9 currently of SymmetryA continuous polygon of 10 sides has 10 present of Symmetry...A regular polygon of "n" sides has actually "n" currently of Symmetry