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A square.

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Q: What is parallelogram with 4 right angles and two adjacent sides equal?
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Are all angles of a parallelogram equal to 90 degrees?

No, only in a square (regular parallelogram).The opposite angles are EQUAL in a parallelogram, and the adjacent angles are SUPPLEMENTARY(they equal 180 degrees).So if any angle in a parallelogram is a right angle, they all are. Otherwise, there are no right angles.The angles of a parallelogram will average 90 degrees, as there are 360 degrees in any quadrilateral, (360/4 - 90) and 180 degrees in two adjacent non-equal angles (180/2 = 90).


What has exactly two adjacent right angles that is not a parallelogram?

A square because a parallelogram has two parallel sides and have two adjacent right angles but a square and a rectangle have also a two adjacent right angles.


What has adjacent sides not equal 2 pairs of congruent sides and 4 right angles?

A parallelogram


Do all squares have two parallel sides?

All squares have TWO SETS of opposite, parallel sides. A square is a parallelogram with 4 equal sides and 4 equal angles (right angles) of which adjacent sides are perpendicular. The related parallelogram, the rhombus, or "diamond" shape, also has 4 equal sides, but no right angles, where opposite angles are equal and adjacent angles are supplementary (sum to 180 degrees).


What is a tilted rectangle called?

A parallelogram.Types of parallelogram:Rhomboid - A quadrilateral whose opposite sides are parallel and adjacent sides are unequal, and whose angles are not right anglesRectangle - A parallelogram with four angles of equal sizeRhombus - A parallelogram with four sides of equal length.Square - A parallelogram with four sides of equal length and four angles of equal size (right angles).


What is a quadrilateral with two pairs of equal sides but no right angles?

A 'KITE' ; two adjacent sides may be of equal length. A parallelogram has two pairs of equal and parallel sides.


What shape has 2 pairs of equal sides and no right angles?

A shape that has 2 pairs of equal sides and no right angles is a kite or a parallelogram. In a parallelogram, each side is equal to the one directly opposite; in a kite, the equal sides are adjacent to one another.


A parallelogram with 4 equal sides but no right angles?

A parallelogram with four equal sides and no right angles is a rhombus.


Are the adjacent sides on a parallelogram perpendicular?

Generally no. If they are perpendicular, all four angles are right angles and the parallelogram is usually called a rectangle.


What are the differences between a parallelogram and a rectangle?

A rectangle IS a parallelogram. However, it is a special case, since not only opposite, but also adjacent angles are equal. Since the angles must sum to 360 degrees, if they must all be equal you have 90 degrees or right angles for all of them . A rectangle is a quadrilateral with 4 right angles. A rhombus is a quadrilateral with 4 equal sides. A parallelogram is a 4-sided polygon where the opposite sides are parallel. A rectangle is a type of parallelogram, but it has the added requirement that all angles are 90°.


How parallelogram with four equal sides but no right Angles?

a rhombus is a parallelogram with 4 equal sides. It does not need right angles; that is a special case which is a square


What is a parallelogram with one interior angle equal to 90?

It is a square, a regular parallelogram with all right angles. The reason is that in a parallelogram, the adjacent angles are supplementary (equal 180 degrees).In any case, the opposite angle would be 90 degrees as well, leaving just 180 degrees for the other two identical opposite angles.