Answer:
30°
Explanation:
1. Label the sides
- the side opposite the right angle is the hypotenuse (hyp)
- the side opposite the angle you are trying to find (?) is the opposite (opp)
- the remaining side is the adjacent
2. Work out which trig ratio to use:
- sin θ = opp/hyp, cos θ = adj/hyp, tan θ = opp/adj, where θ is the angle you are trying to find out
- because you have the adjacent and the hypotenuse, you can use cos
3. Find the angle:
- you can substitute your values into the equation
- cos θ = 45/52
- to get θ on its own, you need to do the inverse of cos: θ = cos-1(45/52) which is 30.073.. ≈ 30°
Hope this helps!