Question

How can I find the length of the lettered sides in the triangle?

Answer 1

Given:

In a right triangle,

The length of the adjacent side is P.

The length of the hypotenuse side is 12cm.

The angle is 60 degrees.

To find:

The value of P.

Step-by-step explanation:

Using the formula of trigonometric ratio,

`\cos\theta=(adj)/(hyp)`

On substitution we get,

`\begin{gathered} \cos60^(\circ)=(P)/(12) \\ P=12\cos60^(\circ) \\ P=12((1)/(2)) \\ P=6cm \end{gathered}`

Final answer:

The value of P is 6cm.