Question 857203
Liola drives 15km up a hill that is at a grade of 10 degrees. What horizontal distance has she covered?
-----------------------
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.
----
cos(10) = side adjacent/hyp = x/15
x = 15*cos(10)
x =~ 14.772 km