Angle_of_elevation_depression.notebook
Grade of the Road
• Grade is in %
• Grade of road = rise/run
• Grade of road = tangent ratio
Find the angle the road makes with
the horizontal if its grade is 18%.
Grade of road is 89%.
Find the angle the road makes with the horizontal.
If the road is 5 miles long
then how much does it rise?
February 12, 2016