To know if a shape has line of symmetry consider folding it and if the folded part sits perfectly on top (all edges matching) then the fold line is said to have a line of symmetry. Line of symmetry can be found by drawing a line horizontally, vertically or diagonally and if they are not mirror images then it said to have no line of symmetry.

Given below are the different types of line symmetry.

**Zero line of Symmetry**For certain shapes there will be no line of symmetry whether you wish to find it vertically, horizontally or diagonally.

**Example:** Scalene triangle - No angles will be equal.

One Line of SymmetryAll shapes with at least one line of symmetry will be symmetrical.

**Example:** Isosceles triangle - Two sides will be equal, Isosceles trapezoid.

**Infinite lines of symmetry**A line that goes through its center will be the line of symmetry. Whole xy -coordinate will have infinite lines of symmetry.

**Example:** Circle