Let the Angle (l) be θ
From the Figure :
✿ [tex]\mathsf{Tan(\theta) = \frac{20}{21}}[/tex]
[tex]\mathsf{\implies \theta = Tan^-^1(\frac{20}{21})}[/tex]
[tex]\mathsf{\implies \theta = 43.6}[/tex]
The Approximate Measure of ∠l = 43.6°
3rd Option is the Answer
