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24 votes
24 votes
Can you help me with number 20? I am confused with it

Can you help me with number 20? I am confused with it-example-1
User Alon
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1 Answer

14 votes
14 votes

Question 20

We have the given triangle

To get x, we will use the trigonometric relation


\cos \theta=\frac{\text{adjacent}}{\text{hypotenuse}}

Thus, we will have


\cos 71^0=(x)/(20)

To get x, we will cross multiply


\begin{gathered} x=20\cos 71^0 \\ x=6.511 \end{gathered}

The value of x is 6.51

Can you help me with number 20? I am confused with it-example-1
User Snnlankrdsm
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2.9k points