1 Answer

Artspb · Answer 1 · 2023-07-02T13:22:30+0000

From the given right-angled triangle, we have the following:

Hypothenuse side = 13

Opposite side = 12

Adjacent side = 5

Solution

The trigonometric ratio of cos B can be found using the relationship:

$\cos \text{ B = }(Adjacent)/(Hypothenus)$

By substituting, we have:

$cos\text{ B = }(5)/(13)$

Hence, the answer is 5/13 (option C)

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