It's impossible for a quadrilateral to have no equal sides and have right angles.
No. A square fits the classification of a quadrilateral and a parallelogram, but that isn't necessarily the definition. A rhombus is a quadrilateral and a parallelogram, and so are other irregular quadrilaterals. The correct definition would be a parallelogram and a quadrilateral with four right angles and all equal sides.
A square or a rectangle... though technically they have four equal angles...
A rhombus is a quadrilateral with 4 equal sides and if the angles are also all equal that that rhombus is a square.
rhombus
Not normally
Answer: A regular quadrilateral is one with equal sides and equal angles, so it is a square. To negate this definition, we say an irregular quadrilateral is one where the sides are unequal or the angles are unequal OR BOTH. In simpler terms, we could say it is a quadrilateral which is not a square.
A rhombus is an irregular 4 sided quadrilateral because although it has 4 equal sides it does not have 4 equal interior angles.
An irregular quadrilateral.
With quadrilaterals, if there are three equal angles, then we know that the fourth angle must be equal, so the quadrilateral is a rectangle. * * * * * That is absolute rubbish. You can have a quadrilateral with three angles of 70 degrees and the fourth of 150 degrees. There is no name for such quadrilaterals and the only thing that can be said about them is that they are irregular.
An irregular quadrilateral.
Four.
No, they do not.
ALL quadrilaterals have 4 angles
There can be 4 different acute angles in an irregular 4 sided quadrilateral that all add up to 360 degrees.
Yes, the opposite angles in a regular quadrilateral are equal.
All of them except a square which is a regular quadrilateral because it has 4 equal sides and 4 equal angles