1 Answer

RPFeltz · Answer 1 · 2023-10-06T21:14:12+0000

In the question, a right triangle with the 3 sides was given.

Considering angle C, the opposite = 30

Adjacent = 16

Hypothenuse = 34

The trigonometric ratio of cos is given by;

$\begin{gathered} \cos \theta=\frac{\text{adjacent}}{\text{hypothenuse}} \\ \cos \text{ C = }(16)/(34) \\ \cos \text{ C = 0.47059} \end{gathered}$

Therefore, the trigonometrical ratio of cos C to the nearest ten-thousandth is 0.4706

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