Angle Relationships
Figure 1
Refer to Figure above. Spend some time moving Ray CD. Define a linear pair.
Figure 2
Use Figure 2 above by moving points D and G. After spending some time with Figure 2, define complementary angles.
Figure 3
Use Figure 3 above by moving points D and G. After spending some time with Figure 3, define supplementary angles.
Figure 4
Use Figure 4 above by moving points A and C. After spending some time with Figure 4, define vertical angles (the 2 greee angles are vertical and the two red angles are vertical.