Respuesta :

ricchad

Answer:

1)  x = 3

2) ∠TAD  = 130°

Step-by-step explanation:

1)

∠AOB + ∠BOC = ∠AOC

(x + 7) + (x + 7) = 7x - 1

7 + 7 + 1 = 7x - x - x

15 = 5x

x = 15/5

x  = 3

2)

5x = 7x - 20

5x - 7x = -20

x = -20 / -2

x = 10

∠TAD = 180 - 5x

∠TAD  = 180 - 5(10)

∠TAD  = 130°