A rectangle. A square also counts but it is only a special case of a rectangle.
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A square has 4 right angles. Right angles are 90 degree angles.4*90 degrees = 360 degrees
90 degrees
There are 4 right angles of 90 degrees in a full turn of 360 degrees.
A 67 degree angle would be acute. Acute angles are smaller that 90 degrees. Right angles are 90 degrees. Obtuse angles are more that 90 degrees. Straight angles are 180 degrees.
Complementary angles add up to 90 degrees