Respuesta :

Answer:

7. a = 50 degrees

b = 50 degrees

c= 50 degrees

d = 75 degrees

8.

Step-by-step explanation:

7.

a. Vertically opposite angles are equal

b. Vertically opposite angles are equal

c Alternate angles

d. Angles on a straight line.

8. 45 + 45 + 65 + 35 + 40 + 30 = 200m

Hope this helps