Answer
x = 45
Work Step by Step
Use the Sine rule for the right triangle: $\frac{opposite}{hypotenuse}$
sin(x) = $\frac{3}{3*\sqrt{2}}$
Simplify the above equation
sin(x) = $\frac{1}{\sqrt{2}}$
Because sin(45) = $\frac{1}{\sqrt{2}}$:
x = 45 degrees
