The number of lines of symmetry of a triangle depends on what triangle you are talking about. An equilateral triangle has three lines of symmetry (one corresponding to each altitude). An isosceles triangle (that is not equilateral) has one line of symmetry. Other triangles have none.
one line of symmetry
A circle, square, oval, hemisphere, Equilateral triangle, Isosceles Triangle
No. A triangle contains three line segments.
An equilateral triangle and an isoceles triangle have one line of symmetry.
An Isosceles triangle has at least one line of symmetry but if it has more than one line of symmetry it can be an Equilateral triangle as well as a Isosceles Triangle. So a triangle with one line of symmetry is always Isosceles and If it has more than one it is always an Equilateral triangle as well as an Isosceles triangle. Example of an Isosceles triangle:
An isosceles triangle has 1 line of symmetry
A relevant notion triangle is a triangle where side a is the longest line of a the triangle, the side b is the second longest line from the top of the triangle down to the right side of the triangle. The last line is side c which is the shortest line from the top to the bottom left.
An isosceles triangle
An isoceles triangle
depends on what type of triangle
A right triangle??