A square. Four 90 degree angles allow a quadrilateral to have equal sides.
rhombus
A Parallelogram
No special type, and so without a special name.
Equiangular quadrilaterals are four-sided polygons that have equal angles. These include squares (90 degree angles) and rectangles (90 degree angles).
90 degree angles
A rectangle.
A square and a rectangle
A square or a rectangle
4 sides requires Total interior angles of 360 degrees 360-90-90-91= 89
rectangles and rhombii (plural of rhombus)
90 degrees
The sum of the interior angles of a quadrilateral is 360 degrees so if 3 of them are right angles (90 °) the remaining fourth angle must also be 90 °. 360° - 3x90° = 90°
It could be a kite or a right trapezium.
No, but it can have 1, 2 or 4 ninety degree angles.
A quadrilateral is not necessarily a rectangle. The only time this is not true is in the case of a square on a quadrilateral without four 90 degree angles.
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.