Question

A road rises 60m for every 340m travelled along it. At what angle ( to the nearest degree) is the road inclined to the horizon

Answer 1

Explanation:

let angle of incline be represented by alpha

`\tan( \alpha ) = (60)/(340)`

`\alpha = \tan( (60)/(340) )`

(note that above, inverse tan (tan to the power of -1 is used)

`= 10.0079798`

= 10 degrees ( nearest degree)