Answer:
A = 60
Step-by-step explanation:
The exterior angle is equal to the sum of the opposite interior angles
119 = 3y+14 + 4y
Combine like terms
119 = 7y+14
Subtract 14 from each side
119-14 = 7y+14-14
105 = 7y
Divide each side by 7
105/7 = 7y/7
15 = y
We want to find Angle A
A = 4y
A = 4*15
A = 60
