90% of what?
Maybe 90 degrees? That is called a right angle.
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A 90-degree angle is commonly called a right angle.
An angle of 90 degrees is a right angle.
An angle which measures 90 degrees is called a right angle. An angle of less than 90 degrees is an acute angle and one which is more than 90 degrees is an obtuse angle.
an obtuse angle is an angle ranging from 90 to 180 degrees. an acute angle ranges from 0 to 90 degrees. so to answer your question. obtuse.
A Right Angle