obtuse angles
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Each interior angle measures 135 degrees Each exterior angle measures 45 degrees
Acute angles are greater than zero and less than 90 degrees. Right angles are exactly 90 degrees. Obtuse angles are greater than 90 and less than 180 degrees.
An angle that measures less than 90 degrees is considered acute. If it measures more than 90 degrees, it is obtuse.
An angle that measures greater than 90 degrees but less than 180 degrees is an obtuse angle.
A 23-degree angle is classified as an acute angle, as it measures less than 90 degrees. Acute angles are commonly found in geometric shapes such as triangles and rectangles. In trigonometry, acute angles are essential for calculating various properties of triangles and other geometric figures.