Question

Confused on the function and method for this... help me out please.

Answer 1

∠ YZX ≈ 19.7°

Explanation:

using the sine ratio in the right triangle.

sin YZX =
`(opposite)/(hypotenuse)` =
`(XY)/(YZ)` =
`(7.5)/(22.3)` , then

∠ YZX =
`sin^(-1)` (
`(7.5)/(22.3)` ) ≈ 19.7° ( to 3 significant figures )