An equilateral triangle has 3 lines of symmetry
It will, unless the shape is symmetrical and the axis of reflection is parallel to the axis of symmetry.
You are an isosceles triangle
6
4
Asymmetrical. The answer is NOT irregular. An irregular shape, such as an isosceles triangle does have an axis of symmetry.
There are 3 lines of symmetry ina 6-sided shape.
An irregular trapezium.
A hexagon is the simplest shape, and the only regular polygon, with 6 lines of symmetry.
When referring to the figure and shape of "6", no it does not have any lines of symmetry.
cube
A hexagon