Answer:
6.19
7a.C
7b.Angle AED
7c.Angle 8
7d. Angle 6 and 8
Explanation:
6a. The labeled angles are vertical angles so we set them equal to each other.
7a.Angle 11 is near Point C so Point C is the vertex.
7b. Angle 5 vertex is E so we can use any 3 points as an angle as long as E is in the middle example, and the angles are on the left side so we can use
Write the angle sign as well.
7c. Angle 6 is vertical from Angle 8.
7d. Angle 7 and 6 form a linear pair and since Angle 6=Angle 8, Angle 7 and 8 form a linear pair as well.