Answer:
1.Right Angle
An angle whose measure is equal to 90° is called a right angle.
2.Acute Angle
An angle whose measure is more than 0° but less than 90° is called an acute angle. Angles having magnitudes 30°, 40°, 60° are all acute angles.
3.Obtuse Angle
An angle more than 90 degrees and less than 180 degrees, is called an obtuse angle.
