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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.

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Q: What has exactly two adjacent right angles that is not a parallelogram?
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How many right angles are in a parallelogram?

There are no right angles in a parallelogram. A parallelogram only has right angles if it is a rectangle, in which case it has exactly four.


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 is parallelogram with 4 right angles and two adjacent sides equal?

A square.


If a parallelogram has one right angle then all of its angles must be right?

Yes. This is true because opposite angles are congruent and adjacent angles are supplementary.


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

A parallelogram


Definition of a quadrilateral that is not a parallelogram and could have exactly two opposite right angles?

A rectangle is a parallelogram, and neither a trapezoid nor an isosceles trapezoid could have exactly two opposite right angles.So, a quadrilateral that is not a parallelogram and could have exactly two opposite right angles must be a kite.


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).


Parallelogram with adjacent sides of unequal length?

A parallelogram with adjacent sides of unequal length is known as an oblique parallelogram. In this type of parallelogram, the opposite sides are still parallel and equal in length, but the adjacent sides are not. The angles between the unequal sides are also not right angles, making it different from a rectangle or square. The area of an oblique parallelogram can be calculated using the formula: base x height.


Why aren't parallelograms rectangle?

Adjacent sides of a parallelogram nee not meet at right angles. In a rectangle they must.


Does a parallelogram have any right angles?

No, a parallelogram does not have any right angles by definition. A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length. Right angles are angles that measure exactly 90 degrees, which are not present in a parallelogram unless it is a special case like a rectangle or a square.


Can a parallelogram have exactly two right angles?

Oh, dude, a parallelogram with two right angles is like a rare unicorn in the world of shapes. Technically speaking, if a parallelogram has two right angles, it's actually a rectangle, but who really cares about labels, right? So yeah, it's possible, but it's not your everyday parallelogram.


Which parallelogram has no right angles?

Except for rectangles, no parallelogram has right angles.