All regular shapes have a line of symmetry. But you can get rid of its line of symmetry by making it irregular (so the angles aren't the same).
No. Asymmetric shapes do not have any lines (or planes) of symmetry.
A square dies because you can fold it across 😜.
Shapes do not always have lines of symmetry. For example, if you have an irregular shape, it will not have a line of symmetry. I am quite certain though that all geometric shapes have a line of symmetry.
It all depends what types of shapes, but take for example a circle, it can have multiple lines of symmetry.
It depends on what kind of shape you are asking about. A circle has an infinite number of lines of symmetry, all passing through the center. Regular shapes (triangle, square, rectangle, pentagon, etc.) have at least one. Irregular shapes tend to have no line of symmetry.
Not all 4 sided quadrilaterals have lines of symmetry.
not all shapes have lines of symmetry. one example is a triangle.
There would be too many to name. All regular polygons have a line of symmetry, but there are still polygons that don't.
All shapes have translation symmetry.
It is the same as in shapes, the ability to be divided into two equal halves either vertically or horizontally. Not all letters have a line of symmetry, and some have two (H, X, O).
all equilateral shapes do. that means that all sides are the same length.