A figure with 4 equal sides and 4 equal angles is a square :)
A figure with four equal sides and no right angles is a rhombus. A rhombus is comprised of two acute angles and two obtuse angles.
an equilateral triangle has all its angle and sides equal
A general quadrilateral.
A four sided figure with four equal sides and no right angles is a diamond, or a rhombus. If it had four right angles, it would be a square.
square
polygon
a square
The figure is a Regular polygon.
equilateral parallelogram
A square is a rectangle with 4 equal sides and 4 equal angles. A rhombus is a parallelogram with 4 equal sides.
A seven sided figure with equal angles and equal sides is known as a heptagon. It looks similar to a pentagon but has more sides and therefore larger angles.