Any figure is said to have a line of symmetry, if on folding the figure about this line, the two parts of the figure exactly coincide.

If you can reflect (or flip) a figure over a line and the figure appears unchanged, then the figure has reflection symmetry or line symmetry. The line that you reflect over is called the line of symmetry. A line of symmetry divides a figure into two mirror-image halves. Reference:https://www.learner.org

Line of symmetry of a Triangle: The division of triangles into scalene, isosceles, and equilateral can be thought of in terms of lines of symmetry.

A scalene triangle is a triangle with no lines of symmetry

Isosceles triangle has at least one line of symmetry and an