Question

Find the value of x. Round to the
nearest tenth.
X
26
12
X
x = [?]

Answer 1

Answer:

Step-by-step explanation:

This is classic right triangle trig, cos specifically. Our reference angle is the one marked 26°, the hypotenuse is given as 12, and the side adjacent to the reference angle is our unknown. This is the cosine ratio. Setting up to solve for x:

$cos26=\frac{x}{12}$ and

12cos(26) = x  Plug this into your calculator in degree mode to get that

x = 10.8