For numbers 8 – 10, please refer to Figure 1.

 _____ 8. If the

A.    80°                       B. 83°                      C. 86°                                 D. 89°

_____ 9. Consider the

A.    115°                      B. 120°                  C. 126°                  D. 130°

_____ 10. If the

A.    47°                        B. 45°                    C. 36°                    D. 30°

_____ 11. Two angles are complementary if the sum of the measures of their angles is ___?

A.    90°                        B. 180°                  C. 240°                  D. 360°

_____ 12. Two angles are supplementary if the sum of the measures of their angles is ___?

A.    180°                      B. 135°                  C. 90°                    D. 45°

_____ 13. The measure of an angle and its supplement are in the ratio of 2:3. Find the measure   
                of the angle? (Hint: Let x, the measure of the angle and 180 – x, the measure of its supplement)

 A.    108°                      B. 72°                    C. 54°                    D. 36°​