Answer:
12.1
Step-by-step explanation:
You could use the formula:
Tan Θ = [tex]\frac{Opposite side}{adjacent side}[/tex]
The opposite side is 'x' and the adjacent side is 15. Θ is 39°. So replace all the terms in the formula.
Tan 39° = [tex]\frac{x}{15}[/tex]
Now that 15 to the other side to multiply with Tan 39° and find the value of 'x'.
x = Tan 39° × 15
x = 12.1467605
x = 12.1 (to the nearest tenth) (The '1' after the decimal is 'to the nearest tenth' and since 4 next 1 is less that '5', there will be no need to too add '+1' to '1')
