 When two rays meet at a point, an angle is formed.
 The point at which they meet is called the vertex.
 An angle that measures 90 degrees is called a right angle.
 An angle that measures less than 90 degrees is called acute angle.
 An angle that measures more than 90 degrees is called obtuse angle.
 Squares and rectangles are made up of four right angles.
Directions: Answer the following questions. Also draw right angle, acute angle, obtuse angle and name the rays, angles and vertex.
