SOLUTION: Liola drives 15km up a hill that is at a grade of 10 degrees. What horizontal distance has she covered? could you PLEASE explain how you got the answer?????

Question 857203: Liola drives 15km up a hill that is at a grade of 10 degrees. What horizontal distance has she covered?
could you PLEASE explain how you got the answer?????
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Liola drives 15km up a hill that is at a grade of 10 degrees. What horizontal distance has she covered?
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it's a right triangle.
The hypotenuse is 15 km.
The 10 degs is wrt the horizontal, or the x dimension in a typical x-y plane.
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cos(10) = side adjacent/hyp = x/15
x = 15*cos(10)
x =~ 14.772 km

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