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TYPES OF ANGLES gy, , ACUTE ANGLE When an angle measures, between O° and 90° It is, , called an acute angle., , RIGHT ANGLE When the angle is exactly, 90°, it is called right angle., , OBTUSE ANGLE | When an angle measures, between 90° and 180° It is, , called an obtuse angle., , 90°< @ < 180°, , STRAIGHT When an angle measure, ANGLE exactly 180° , It is called, , straight angle., , REFLEX ANGLE | When an angle is greater than, 180° but less than 360° .Then, , it is called Reflex angle., , 180° < 6 < 360°, , COMPLETE When an angle is exactly 360°, ANGLE OR FULL | Then it is called full angle or, ROTATION complete angle.