Question

Solve for theta to the nearest degree​

Answer 1

Explanation:

So first thing is to determine which trigonometric ratio we use here. Theta is adjacent to 5 and 8 is the hypotenuse, so we should be using Cosine.

So we set up the equation

cos θ = adj/hype

cos θ = 5/8

θ =
`cos^(-1) (5/8)`

θ=51.3178125...

θ=51°