For item numbers 11 and 12, use the following choices.
A. 35° B. 450 C. 70° D. 110°

11. Angle A and angle C of a parallelogram are opposite angles. If angle A is 110°, what is the measure of angle C?

12. If angle A and angle B are supplementary angles, what is the measure of angle B if angle A is 110°? ​