Answer:
x = 20 , ∠ A = 125°
Step-by-step explanation:
∠ A and ∠ B are alternate angles and are congruent, then
6x + 5 = 4x + 45 ( subtract 4x from both sides )
2x + 5 = 45 ( subtract 5 from both sides )
2x = 40 ( divide both sides by 2 )
x = 20
Then
∠ A = 6x + 5 = 6(20) + 5 = 120 + 5 = 125°
