Question

PLEASE HELP ASAP
TRIGONOMETRY

Answer 1

11). x = 25.8°

12). x = 67.3°

Explanation:

11). By using sine rule in the given triangle,

cos(x) =
`\frac{\text{Adjacent side}}{\text{Hypotenuse}}`

cos(x) =
`(27)/(30)`

x =
`\text{cos}^(-1)((9)/(10) )`

x = 25.84

x ≈ 25.8°

12). By applying tangent rule in the given triangle,

tan(x) =
`\frac{\text{Opposite side}}{\text{Adjacent side}}`

tan(x) =
`(43)/(18)`

x =
`\text{tan}^(-1)((43)/(18) )`

x = 67.29°

x ≈ 67.3°