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A road has a steady gradient of 1 in 10. What angle does the road make with the...
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A gradient of 1 in 10 means that for every 10 units
Better Students Ask More Questions.
A road has a steady gradient of 1 in 10. What angle does the road make with the...
2 Answers | add yours
A gradient of 1 in 10 means that for every 10 units of horizontal distance traverses there is 1 unit of vertical drop or rise. The angle of Tan of this angle (A) of drop or rise with the horizontal can be calculates as:
tan A = (Horizontal Distance)/(Vertical Distance)
Substituting the values of the horizontal and vertical distances as identified:
tan A = 1/10 = 0.1
From trigonometric tables we see that angle corresponding to 