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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).
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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.
What shape is a parallelogram with all angles equal to 90 degrees and it's diagonals are perpendicular on each other?
A square.
Does a parallelogram have four right angles?
Not necessarily. A parallelogram is a quadrilateral with 2 sets of 2 parallel sides. Only rectangles and squares have right angles as all four angles - a rectangle is a "special" parallelogram that has all four angles equal; a square is a "special" rectangle that has all four sides of equal length.
It has 4 sides all of its sides are equal all of its angles are right angles?
No, not necessarily. A parallelogram can have all sides equal, but still not be a square.
What kind of parallelogram has equal sides in length but the angles are not necessarily right angles?
A parallelogram has two sets of parallel sides. It can have four sides that are equal in length. That is why a square is also a parallelogram. You can have a parallelogram with two sets of parallel sides, all of which are equal in length, but they do not meet in right angles. It looks kind of like a lopsided or squished square, and it is called a rhombus.
