It is one of the four corners of a rectangle.
90 degrees.
A square and a rectangle.
a rectangle
a rectangle
Yes, a rectangle can have one obtuse angle.
Each angle of a rectangle is equal to the angle opposite.
It is one of the four corners of a rectangle.
90 degrees.
A square and a rectangle.
A rectangle is not an angle.
a rectangle
If you mean if one of the angles is a right angle, then yes, because a rectangle is the only option left if it is to remain a parallelogram.
Yes, a rectangle is a special kind of parallelogram - one that has a right angle. (You can prove that if it has one right angle all angles are right.)
a rectangle
A rectangle can have only one obtuse angle, and lots of rectangles do not have an obtuse angle at all. So it is either none or one.
A rectangle is not an angle (of any kind). It is a kind of quadrilateral.A rectangle is not an angle (of any kind). It is a kind of quadrilateral.A rectangle is not an angle (of any kind). It is a kind of quadrilateral.A rectangle is not an angle (of any kind). It is a kind of quadrilateral.