Question

Bro can someone please help me on these three questions I’ve been trying to get help on these questions for like the past 30 minutes please help me

Answer 1

Explanation:

1). By applying cosine rule in the given triangle,

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

cos(x°) =
`(6)/(8)`

x =
`\text{cos}^(-1)((3)/(4) )`

x = 41.41°

2). By applying cosine rule in the given triangle,

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

cos(x°) =
`(4)/(5)`

x =
`\text{cos}^(-1)(0.8)`

x = 36.87°

3). By applying cosine rule in the given triangle,

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

cos(x°) =
`(51)/(85)`

x =
`\text{cos}^(-1)(0.6)`

x = 53.13°