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The quadrilaterals with all angles congruent are rectangles and squares. They are the only quadrilaterals in which all four angles are right angles.

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0If all adjacent angles are congruent, it can only be a rectangle (or square).

An impossibility. By definition a quadrilateral with 4 congruent sides must have congruent adjacent angles.

Rectangle: A quadrilateral with 4 right angles, diagonals congruent/bisecting, and opposite sides congruent, BUT ADJACENT SIDES ARE NOT CONGRUENT. Rhobus: A quadrilateral with opposite congruent angles, but adjacent angles are Not congruent, perpendicular bisecting diagonals and 4 congruent sides. Square: A quadrilateral that is a rectangle and a square with 4 right angles, diagonals congruet/bisecting that ar perpendicular, and opposites sides congruent.

Yes, if a quadrilateral has 4 congruent sides and 4 congruent angles, it is a square. Since it is a square, all angles are 90o. Since there are no angles above 180o, it is convex.

they have 4 congruent angles

A quadrilateral has 2 pair of congruent angles and 4 congruent sides. What is the name of the quadrilateral

False. If both pairs of opposite angles of a quadrilateral are congruent then the quadrilateral is a parallelogram.

Yes. It is still a quadrilateral as long as it still has four sides, and they can be congruent if all of the sides are equal. It does not mean that All of the angles have to be right.

For the quadrilateral to be a parallelogram, both pairs of opposite angles must be congruent.

No, a parallelogram with 4 equal sides would not have 4 congruent angles, only two.

Yes. It would be a rhombus.

A square would fit the given description.

An ireggular square has sides all the same lenght but all the angles are not congruent

A quadrilateral has four interior angles. It may have two, three, four, or none of them congruent.

A quadrilateral is any polygon with 4 sides - and hence with 4 angles. Those angles may, or may not, be congruent.A quadrilateral is any polygon with 4 sides - and hence with 4 angles. Those angles may, or may not, be congruent.A quadrilateral is any polygon with 4 sides - and hence with 4 angles. Those angles may, or may not, be congruent.A quadrilateral is any polygon with 4 sides - and hence with 4 angles. Those angles may, or may not, be congruent.

A rectangle is a quadrilateral with four sides. All angles are right angles, the diagonals are congruent, and the opposite sides are all equal. A rhombus (diamond) is a quadrilateral with congruent daigonals and equal angles.

I can't find a name for it but an example would be a trapezoid. Some might have congruent angles but not all do.

A quadrilateral is ANY closed figure with 4 sides. Therefore, it also has 4 angles - any of which may, or may not, be congruent. About the only general statement about angles that applies to all quadrilaterals is that the sum of the angles is 360 degrees. By the way, it is possible for a quadrilateral to have 3 congruent angles, and the fourth angle not be congruent with the other 3.

A quadrilateral is a plane figure with four straight sides and does not necessarily have any congruent angles. Some quadrilaterals such as, squares, rectangles, rhombuses, and parallelograms do have congruent angles.

No it has 4 congruent angles and 2 sets of congruent sides

A Rhombus is:A quadrilateralAll sides equalOpposite sides parallelA Rhombus is a quadrilateral, therefore its interior angles sum to 360°If all the interior angles are congruent they are all 360° ÷ 4 = 90°Thus a Rhombus will 4 congruent angles is:A quadrilateralAll sides equalOpposite sides parallelAll angles equal (to 90°)This is the the definition of a Square. A Square is a "special" Rhombus with all angles equal.

It cannot. There is no way to draw a quadrilateral where 3 sides are congruent.

Rectangles;all angles equal 90 degrees

Yes. For example, a quadrilateral with internal angles of 80, 80, 80, 120 has three congruent angles, but is not a rectangle.

If both pairs of opposite angles of a quadrilateral are congruent, then it is a parallelogram.

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