No. A hexagon is always a polygon, but the reverse isn't true.
Yes, by definition. If it not equilateral AND equiangular, then it is not regular.
Yes, a regular polygon is always equiangular.
A square, pentagon, decagon, octagon are always regular polygons.
Not always
No. A hexagon is always a polygon, but the reverse isn't true.
Sometimes but not always depending on what type of polygon it is and supplementary angles add up to 180 degrees
Yes, by definition. If it not equilateral AND equiangular, then it is not regular.
A Square is a polygon that is always regular.
Yes, a regular polygon is always equiangular.
A square, pentagon, decagon, octagon are always regular polygons.
a regular polygon is always equilateral
It always has straight sides.
A rectangle is always a 4 sided polygon known as a quadrilateral.
Any polygon with 4 or more sides can always have a right angle.
A four-sided quadrilateral is always classified as a polygon.
Yes. Every triangle is a polygon.