Find the length of side RN
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Answer:
RN ≈ 4.2
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos65° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{RN}{PR}[/tex] = [tex]\frac{RN}{10}[/tex] ( multiply both sides by 10 )
10 × cos65° = RN , then
RN ≈ 4.2 ( to 1 dec. place )