Answer
Angle A = 19°
Explanation
Vertical angles are angles that are directly opposite each other at a point where two lines intersect or cross each other. Vertical angles are known to be equal to each other.
So, Angle A = Angle B
Angle A = 3x + 13
Angle B = 5x + 9
3x + 13 = 5x + 9
We can rewrite this as
5x + 9 = 3x + 13
5x - 3x = 13 - 9
2x = 4
Divide both sides by 2
(2x/2) = (4/2)
x = 2
Angle A = 3x + 13 = 3(2) + 13 = 6 + 13 = 19°
Hope this Helps!!!
