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An acute angle is between 0 and 90 degrees. Angles between 90 and 180 degrees are called obtuse angles.
The measure of an acute angle is between 0 and 90 degrees (more than 0, less than 90).The measure of an acute angle is between 0 and 90 degrees (more than 0, less than 90).The measure of an acute angle is between 0 and 90 degrees (more than 0, less than 90).The measure of an acute angle is between 0 and 90 degrees (more than 0, less than 90).
An angle is 90 degrees if and only if it is a right angle.
An obtuse angle.
The complement of an angle is 90 degrees minus the angle 90-57 = 33 degrees