Why can’t a triangle have 2 lines of symmetry?
A line of symmetry for a triangle must go through one vertex. The two sides meeting at that vertex must be the same length in order for there to be a line of symmetry. … The triangle with side lengths 2,4,5 cannot have any lines of symmetry as the side lengths are all different.
Step-by-step explanation: No triangle has 2 lines of symmetry. Equilateral triangle has three lines of symmetry while an isosceles has one.