Question

Trigonometric functions: what is the value of x?

Answer 1

Answer:

x ≈ 19.7

Step-by-step explanation:

Using the sine ratio in the right triangle.

sin66° = $\frac{opposite}{hypotenuse}$ = $\frac{18}{x}$ ( multiply both sides by x )

x × sin66° = 18 ( divide both sides by sin66° )

x = $\frac{18}{sin66}$ ≈ 19.7 ( to the nearest tenth )