Since it is a right angled triangle.
tan x = 14.1/19.1
tan x ≈ 0.7382
x ≈ tan⁻¹(0.7382) use a calculator.
x ≈ 36.4°
Since x and y are adjacent angles of right angled triangle.
x + y = 90°
x = 90° - 36.4°
x = 53.6°
y - x ≈ 53.6° - 36.4°
y - x ≈ 17.2°
17.2
