The measure of an acute angle is
more than 90 degrees, less than 90 degrees, or 90 degrees.
This is a right angle. The measure of this angle is 90
degrees. This helps us to eliminate one of
our possible answers. An acute angle is not 90
degrees. A right angle measures 90
degrees. An angle which measures less than
90 degrees is called an acute angle. And an angle which measures more
than 90 degrees is called an obtuse angle. So, we can say the measure of an
acute angle is less than 90 degrees.
Acute angles measure less than 90
degrees, right angles measure 90 degrees, and obtuse angles measure more than 90
degrees and less than 180 degrees. The measure of an acute angle is
less than 90 degrees.