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

Algebra ->  Algebra  -> Triangles -> 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      Log On

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Question 132929: 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 vleith(2517) About Me  (Show Source):
You can put this solution on YOUR website!
You are 20 feet away from a wall 15 feet hit. Assuming the wall is vertical, you can obtain the angle at point o (below) by using tangent.
Tangent is opposite%2Fajacent
|
|(15)
|
-----(20)---o
tangent = 15/20 = 0.75
use your calculator to find the Tan-1(.75) -- 36.86 degrees