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

Answer:

Step-by-step explanation:

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

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

   cos(x°) = $\frac{6}{8}$

   x = $\text{cos}^{-1}(\frac{3}{4} )$

   x = 41.41°

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

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

   cos(x°) = $\frac{4}{5}$

   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°) = $\frac{51}{85}$

   x = $\text{cos}^{-1}(0.6)$

   x = 53.13°