I hope this is ot your homework...The answer is a square...I think!
No. A regular polygon has equal length sides and all the angles are equal. A rhombus has equal length sides, but only the opposite angles are equal. Since all the angles are not equal, the rhombus is not a regular polygon and is known as an irregular polygon.
A polygon with sides of equal length and equal angles is termed a regular polygon.
It is a Rectangle
parallelogram
A regular polygon has equal sides in length and angles.
A regular polygon is a polygon whose sides are equal length and whose angles are all the same value. A non regular polygon is just the opposite of a regular polygon.
They may, or may not, be equal. If you are talking about a regular polygon, all angles are equal in measure. If it is not a regular polygon, the angles are most likely different.
square
octagon
It is a regular polygon when its sides are of equal length and its interior angles are of equal sizes
Rhombus!
A regular polygon has all equal interior angles and all equal sides of the same length