Use the inverse of cosine to find the approximate measure of the missing angle θ. Responses 59.5° 59.5° - incorrect 30.5° 30.5° - not selected, this is the correct answer 90° 90° - no response given 43°
To find the missing angle θ, we can use the inverse cosine function.
cos(θ) = adjacent side / hypotenuse = 3 / 5
θ = cos^(-1)(3/5) ≈ 53.13°
Therefore, the approximate measure of the missing angle θ is 53.13°. The closest answer given is 30.5° which is incorrect.