Acute Angle, Between 0 and 90 degrees, Right Angle, 90 degrees, Obtuse Angle, Between 90 and 180 degrees, Straight Line, 180 degrees, Reflex Angle, Between 180 and 360 degrees, Full turn, 360 degrees, Angles in a Triangle, Total of 180 degrees, Angles in a Quadrilateral, Total of 360 degrees

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