They are all polygons
They are all polygons.
All three are polygons.
All of them.
They are regular polygons such as a square or an equilateral triangle.
Triangle
they are all polygons
They are all polygons
They are all polygons.
there all polygons and have angles
All three are polygons.
All of them.
A triangle, a square, a rectangle, a pentagon are all polygons.
The all have 2 or more sides
360 degrees as is with all other polygons!
Any polygon other than a triangle can be divided into simpler polygons. They can all be divided into triangles.
A triangle, a square, a rectangle, a pentagon are all polygons.