Asked by Jason

A ramp 10 feet in length rises to a loading Platform that is 4 feet off the ground. What is the angle of elevation of the ramp in degrees?

Do I use the law of cosines? When I do though I'm getting a little confused what to do.
Answered by Damon
No, it is a right triangle
sin angle = 4/10
Answered by Jason
I tried that and it said that it was the wrong answer.
Answered by Damon
Well I get 23.58 degrees.
Answered by June
you use sin^-1 then do 4/10
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