A square and a rectangle
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90 degree angles.90 degree angles.90 degree angles.90 degree angles.
Yes, they have four corners each of which are 90 degree angles.
They are squares and rectangles that each have four congruent angles of 90 degrees which makes up a total of 360 degrees.
The only quadrilaterals that always have all four right angles are the square and the rectangle. All four angles in a quadrilateral must add up to 360 degrees.It is possible to have non-regular quadrilaterals with one or two right angles. A quadrilateral with three right angles becomes either a square or a rectangle, because its fourth angle must also be a right angle.
A square or a rectangle