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obtuse: greater than 90 degrees right: 90 degrees acute: less than 90 degrees
Angles less than 90 = actute Angles of 90 = right angle Angles more than 90 = obtuse Angles more than 180 = reflex
Acute ( less than 90 degrees), Obtuse (more than 90 degress), Right (90 degrees), Straight (180 degrees), Reflex (more than 180 degrees)
An angle measuring more than 90 degrees is obtuse. An angle measuring less than 90 degrees is acute. An angle measuring 90 degrees is right.
An angle of more than 90 degrees is called an "obtuse" angle. Strictly speaking an obtuse angle is from 90 to 180 degrees.