Answer:
1. Angle 11/12: Since angle 11/12 is opposite angle m29, they have equal measures. Therefore, the measure of angle 11/12 is (6x-2).
2. Angle 1/2: Angle 1/2 is a vertical angle to angle 11/12. Vertical angles are congruent, meaning they have equal measures. So, the measure of angle 1/2 is also (6x-2).
3. Angle 3/4: Angle 3/4 is opposite angle m3, so they have equal measures. Therefore, the measure of angle 3/4 is (5x+6).
4. Angle 78: Angle 78 is a right angle. In a right triangle, one of the angles is always 90 degrees.
5. Angle १ 10: Angle १ 10 is opposite angle 3/4, so they have equal measures. Therefore, the measure of angle १ 10 is (5x+6).
6. Angle 5/6: Angle 5/6 is a vertical angle to angle १ 10. Vertical angles are congruent, so the measure of angle 5/6 is also (5x+6).
7. Angle a: The measure of angle a is equal to the measure of angle 3/4, which is (5x+6).
8. Angle b: The measure of angle b is equal to the measure of angle १ 10, which is (5x+6).
9. Angle C: Angle C is opposite angle a, so they have equal measures. Therefore, the measure of angle C is (5x+6).
10. Angle mz1: Angle mz1 is equal to angle 11/12, which is (6x-2).
11. Angle mz3: Angle mz3 is equal to angle 3/4, which is (5x+6).
12. Angle m47: Angle m47 is equal to angle b, which is (5x+6).
13. Angle m28: Angle m28 is equal to angle C, which is (5x+6).
14. Angle m²11: Angle m²11 is equal to angle 1/2, which is (6x-2).
Explanation: