a quadrilateral where each angle is a right angle
No , a parallelogram can not have a 90 Degree angle .Reason : A Parallelogram can be defined as a quadrilateral whose two s sides are parallel to each other and all the four angles at the vertices are not 90 degrees or right angles, then the quadrilateral is called a parallelogram.
Each angle in a square is a right angle, or a 90 degree angle.
A square is a type of parallelogram which is a type of quadrilateral which is a polygon.from WikipediaA convex quadrilateral is a square if and only if it is any one of the following:[2][3]a rectangle with two adjacent equal sidesa quadrilateral with four equal sides and four right anglesa parallelogram with one right angle and two adjacent equal sidesa rhombus with a right anglea rhombus with all angles equala quadrilateral where the diagonals are equal and the perpendicular bisectors of each other, i.e. a rhombus with equal diagonals
It is a right angle which is 90 degrees
rectangle
That is called a rectangle.
A rectangle or a square.
a square or a rectangle
It is a square or a rectangle where each interior angle is a right angle of 90 degrees.
A square or a rectangle
A quadrilateral with all right angles is a rectangle.
A rectangle, or perhaps a square.
A square or a rectangle
The answer to this question is really straight forward........square! Obviously.
A rectangle, or could be a square if lengths are the same.
Either a square or a rectangle