90 degrees
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An acute angle is less than 90 degrees. Therefore, as a rectangle has 4 right-angles (90 degrees) there are no acute angles.
180 degrees
90 degrees. A rectangle is a four-sided figure with two pairs of parallel sides and four right angles.
360 Degrees
A right angle is 90 degrees and the 4 interior angles of a square and a rectangle are all right angles.