A square and a rectangle both have exactly 4 interior right angles of 90 degrees that add up to 360 degrees.
Square
An irregular shape
Any shape with 4 acute angles must have more than 4 sides. Any shape with more than 4 sides can have 4 acute angles (but doesn't have to).
4 angles
There is no shape with exactly 4 right angles and 2 congruent sides.A rectangle has 4 right angles and 2 pairs of congruent sides - 4 sides in all. But if the numbers in the question are not limiting, then there are many more shapes. An irregular hexagon with the following shape, will meet the requirements if its height is the same as its base.___|....\|......\___!_______|There are lots more shapes with more sides.
Square
A shape that has exactly 4 sides, 2 right angles and one pair of parallel sides is a rectangle. ~T
An irregular shape
Any shape with 4 acute angles must have more than 4 sides. Any shape with more than 4 sides can have 4 acute angles (but doesn't have to).
An irregular dodecagon.
You can find out how many angles are in a shape by counting how many edges a shape has. for instance.. a square has 4 edges so it has 4 angles
4 angles
A shape with 4 right angles and 4 equal sides is a square. ==========================
A 4 pointed star.
a squre think
Not normally but in the shape of a rectangle it has 4 right angles.
A RECTANGLE has 4 sides and 4 right angles.