How many acute angles are in a parallelogram?


Quick Answer

A parallelogram that does not have any 90-degree angles, or right angles, has two opposite acute angles. The other opposite pair of equivalent angles is known as obtuse, and the angles are above 90 degrees.

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Full Answer

A parallelogram is any quadrilateral, or four-sided shape, with opposite sides that are parallel and equal in length. Parallelograms that have four internal angles of 90 degrees per corner are rectangles or squares. One obtuse and one acute angle of a parallelogram add to 180 degrees and are known as supplementary angles. An acute angle subtracted from 360 degrees, known as a full rotation, equals the reflex angle, which is the exterior angle of the parallelogram.

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