Question

What is the value or x?

Answer 1

From the given figure

$\cos x=\frac{XY}{XZ}$

Since XY = 5.1 and XZ = 7.7, then

$\cos x=\frac{5.1}{7.7}$

To find x, use the inverse of cos

$x=\cos ^{-1}(\frac{5.1}{7.7})$

Use the calculator to find x

$x=48.522$

The answer is