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

I'm supposed to find the length of x but don't know how-example-1
User Scvalex
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1 Answer

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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}

User Crowding
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