SOLUTION: The height of wall is 15 from the surface level, 20 feet forward from the surface level of the wall and the angle is create from the top of the wall from the surface level of the

Question 132930: The height of wall is 15 from the surface level, 20 feet forward from the surface level of the wall and the angle is create from the top of the wall from the surface level of the wall from the distance of 20 feet tell me how we calculate the angle.
Answer by nycsharkman(136) (Show Source): You can put this solution on YOUR website!
We can use trigonometry to find the angle.
I will use the tangent function, which tells me that it is equal to the opposite side of the right triangle divided by the adjacent side of the right triangle.
Let x (or any letter that you like) = the angle.
So, x = angle.
tan(x) = opposite side/adjacent side
We now have this:
tan(x) = 15/20
x = tan^-1(15/20)
NOTE: The symbol tan^-1 means "tangent inverse."
When looking for an angle in trigonometry, you must use the inverse key on your calculator.
x = 36.86989765
I will round 36.86989765 to the nearest hundredths and the angle is 36.87 degrees.
Did you follow?

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