Question

Find the length of y in the nearest tenth 20.438.333.925.4

Answer 1

Answer:

The value of y is 20.4

Step-by-step explanation:

To find the length of y, we consider either of the following:

`\begin{gathered} \sin \theta=\frac{\text{opposite}}{\text{hypotenuse}} \\ \\ OR \\ \\ \cos \theta=\frac{\text{adjacent}}{\text{hypotenuse}} \end{gathered}`

Suppose we choose to use the first one, we have:

`\sin 62=(18)/(y)`

So that

`y=(18)/(\sin 62)=20.4`

If we choose to use the second one, we have:

`\begin{gathered} \cos 28=(18)/(y) \\ \\ y=(18)/(\cos 28)=20.4 \end{gathered}`