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From a point on the ground 12 feet in front of a building, the angle of elevation to the top of the building is 76 degrees. How tall is the building?

Guest Mar 17, 2017
 #1
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37 ft. ?

Guest Mar 17, 2017
 #2
avatar+87294 
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We can use the tangent  here

 

tan (76)  =   H / 12     where H is the building height........nultiply both sides by 12

 

12 * tan (76)   = H  ≈ 48.13 ft

 

 

cool cool cool

CPhill  Mar 17, 2017

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