Question

Using the trigonometric ratio to find the side length in a right triangle ‼️‼️ Round to the nearest 10th ‼️ help ❓

Answer 1

x ≈ 5.3

Explanation:

Using the cosine ratio in the right triangle

cos66° =
`(adjacent)/(hypotenuse)` =
`(x)/(13)`

Multiply both sides by 13

13 × cos66° = x, thus

x ≈ 5.3 ( to the nearest tenth )

Answer 2

Explanation:

Cos Q = adj/hyp

Cos 66 = x/13

x = 13 × cos 66

x = 13 × 0.4067

x = 5.287

x = 5.3