Answer:
Step-by-step explanation:
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
since we know the Hyp and the Opp of the angle pick SOH
Sin(Ф)= 42 / 42[tex]\sqrt{2}[/tex]
∅ = arcSin( 42 / 42[tex]\sqrt{2}[/tex] )
∅ = 45 °
