Question

In the triangle below, y= . Round to the nearest tenth

Answer 1

Use cosine.

$cosine={adjacent}{hypotenuse}$

We have:

adjacent = 9cm and hypotenuse = 17 cm

$\cos x=\dfrac{9}{17}\approx0.5294\to x\approx58^o$

Answer 2

Answer:

x = 58°

Step-by-step explanation:

In the given right angle triangle we have to find the value of x.

In this triangle one leg is given as 9 cm and hypotenuse is 17 cm.

Since  cos x = $\frac{\text{Adjacent leg}}{Hypotenuse}$

          cos x = $\frac{9cm}{17}$ = 0.52941

               x = $cos^{-1}$ (0.52941)

                  = 58.03  ≈ 58°

Therefore, x = 58° is the answer.