Answer:
x = 38.66 deg
Step-by-step explanation:
we can see that this is a right triangle, hence we can use our trigonometric formula definitions (see attached)
in our case, we observe that in relation to angle x, the opposite length and adjacent lengths are given, hence we can use the tangent formula
tan x = opposite / adjacent
tan x = 12/15
x = tan⁻¹ (12/15)
x = 38.66 deg
