Question

How many lines of symmetry does the triangle have?

Answer 1

Depends on the triangle. Scalene has none. Isosceles has 2 and equilateral has 3.

Answer 2

It depends on which triangle you are trying to find out for.
Scalene triangles have 0 lines of symmetry.
Isosceles triangles have at least 1 line of symmetry.
Equilateral triangles have at least 3 lines of symmetry.