Answer:
θ = 68°
Explanation:
The side 3 is adjacent to the angle we need to find , and we know the hypothenuse so will use the cosθ function
cos θ = adj/ hyp = 3/8
To find the angle we need to apply the inverse function cos ^(-1) and use the calculator to solve it.
θ = cos ^(-1) (3/8) = 67.97
Round to the nearest degree and will have
θ = 68°