What shapes have one line of symmetry?

Answer 1

none really i mean there is only 1 and it is a trapezoid. That's the only one.

You could add an isosceles triangle.

Any polygon where the side to the left of the bottom is the same as the side to the right of the bottom, and the next pair of sides are the same as one another (but different from the first pair), and so on. The angles would have to be selected so that the left half of the shape is the mirror image of the right half. So that is an infinite number added to the "only one".

A truncated parabola.

An ellipse.

and there are loads more.

Answer 2

Any regular polygon has more than one line of symetry. Also the circle has an infinite amount of symetric lines.

Answer 3

Any shape really... square, rectangle, circle,

Answer 4

Isosceles triangle

Answer 5

Trapazoid