
Acute Angle: An angle whose measure is less than 90 degrees and greater then zero degrees is called an acute angle. 0^{0} < mÐA < 90^{0}
Right Angle: An angle whose measure is 90 degrees is called right angle.
Obtuse Angle: An angle whose measure is greater than 90 degrees and less than 180 degrees is called obtuse angle.
Straight Angle: An angle whose measure is 180 degrees called a straight angle.
Reflex Angle: An angle whose measure is greater than 180 degrees and less than 360 degrees is called a reflex angle.
Complete Angle: An angle whose measure is 360 degrees is called a complete angle.
Zero Angle: If the measure of an angle is zero it is called a zero angle. Directions: Answer the following questions. Also draw kinds of angles, measure them using a protractor and label them. 