An obtuse angle
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An obtuse angle. A right angle has an exact measure of 90 degrees; an obtuse angle has a measure greater than 90 degrees.
You have to check to see what type of angle it is first or check to see which angle equally to that number.
An obtuse angled triangle.
An angle that is 91 degrees would be an obtuse angle. Anything above 90 degrees is obtuse while anything below 90 is an acute angle.
To find the supplement of an acute angle, do the following. Supplements must add to 180 degrees, therefore: x=the measure of the acute angle 180-x is the equasion to find the supplement Good Question!