Answer:
61.9°
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you that ...
Tan = Opposite/Adjacent
Then in your triangle, you have ..
tan(x°) = 15/8
x° = arctan(15/8) ≈ 61.9°
____
"arctan(...)" can be read as "the angle whose tangent is ..." The calculator function that gives this value is often a "2nd" function, overlaid on the key that gives you the tangent. It may be labeled tan⁻¹.
