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Find the length of RS to the nearest tenth of a meter

Find The Length Of RS To The Nearest Tenth Of A Meter class=

Sagot :

We were given a right triangle, with a known angle and a known hypothenuse, we want to find the nearest side to the known angle, so we must use the cosine relation, as shown below:

[tex]\begin{gathered} \cos (28)=\frac{RS}{QS} \\ 0.88=\frac{RS}{9.6} \\ RS=9.6\cdot0.88=8.45\text{ m} \end{gathered}[/tex]

The length of the side RS is approximately 8.5 meters.

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