SOLUTION: Q: A road constrution company has been constructed to build the road with grad of 12 percent. At what angle to the horizontal should be road be built?

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Question 252996: Q: A road constrution company has been constructed to build the road with grad of 12 percent. At what angle to the horizontal should be road be built?
Answer by Alan3354(69443) About Me  (Show Source):
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A road constrution company has been constructed to build the road with grad of 12 percent. At what angle to the horizontal should be road be built?
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The gradient is the tangent of the angle
angle = arctan(0.12)
angle =~ 6.84º