polygon!
an irregular hexagon... __/\__ \ / \ / \ /
A kite.
Yes. Think of a kite shape. Symmetry along its length but no parallel sides.
It is a regular pentagon!
An isosceles triangle has exactly one line of symmetry.
A kite.
As isosceles triangle.
An isosceles triangle has one line of symmetry
An isosceles triangle - a triangle with two sides of equal length.
It has 1 line of symmetry
An isosceles triangle has one line of symmetry