An angle smaller than 90 degrees is called...., obtuse, acute, reflex, right angle , straight line, An angle that is bigger than 90 degrees and smaller than 180 degrees is called, obtuse, acute, reflex, right angle, straight line, An angle that is bigger than 180 degrees is called, obtuse, acute, reflex, right angle, straight line, An angle that is exactly 90 degrees is called , obtuse, acute, reflex, right angle, straight line, An angle that is exactly 180 degrees is called, obtuse, acute, reflex, right angle, straight line.

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