Chapter 8.6, Problem 9CE

To determine

To state: Two equations that can be used to find $x$ .

Answer to Problem 9CE

  $\sin 35°=\frac{x}{8},\cos 55°=\frac{x}{8}$

Explanation of Solution

  

Sine of any angle $=\frac{sideoppositetoangle}{hypotenuse}$

So,

  $\sin 35°=\frac{x}{8}$

Cosine of the angle $=\frac{sideadjacenttoangle}{hypotenuse}$

So,

  $\cos 55°=\frac{x}{8}$