Question

question 15 (mandatory) (1 point)
which trigonometric tools must be used to determine the length of x in the diagram shown?

a) the sine law and the tangent ratio
b) the sine and cosine laws
c) the sine and tangent ratios
d) the cosine law and the tangent ratio

Explanation:

To find the length of \(x\), first, use the sine law in the non - right triangle to find the side adjacent to the right - triangle. Then, use the tangent ratio in the right - triangle. The sine law is \(\frac{a}{\sin A}=\frac{b}{\sin B}=\frac{c}{\sin C}\), and the tangent ratio is \(\tan\theta=\frac{\text{opposite}}{\text{adjacent}}\).

Answer:

A. the sine law and the tangent ratio