I'm supposed to find the length of x but don't know how

Deleplace asked May 10, 2023

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Deleplace asked May 10, 2023

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25 votes

By definition:

$\cos (angle)=\frac{\text{adjacent side}}{Hypotenuse}$

From the picture:

$\begin{gathered} \cos (60)=(x)/(20) \\ (1)/(2)=(x)/(20) \\ (1)/(2)\cdot20=x \\ 10=x \end{gathered}$

Praesagus answered May 15, 2023

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