Exercise 1: Name the angles shown in the figure.
Exercise 2: Use a protractor to measure the angles in the above figure. (For example, measure of Ð XYZ is denoted as m Ð XYZ = 90º.)
Exercise 3: Classify the following angles as acute, obtuse, right, or straight.
Exercise 4: Sketch the angles in Exercise 3 on a separate sheet of paper.