The only regular (all sides equal and all angles equal) quadrilateral is a square. So all other quadrilaterals are irregular.

Do all quadrilaterals have 4 equal sides?

Every quadrilateral has 4 sides, 4 vertices, and 4 angles. 4. The total measure of all the four interior angles of a quadrilateral is always equal to 360 degrees. The sum of interior angles of a quadrilateral fits the formula of polygon i.e.

How many equal sides does a quadrilateral have?

A shape with four sides of equal length. The shape has two sets of parallel sides and has four right angles. A shape with four sides of equal length. The shape has two sets of parallel sides and has four right angles.