Asked by Moosa
a tower stands on the top of a cliff. at a distance of 55m from the foot of the cliff, the angles of elevation of the top of the tower as well the cliff are 60° and 45° respectively. find the height of the tower.
Answers
Answered by
Steve
as usual, draw a diagram. You will see that the distances to top and bottom of tower are
top/55 = tan 60°
bottom/55 = tan 45°
Now just evaluate top and bottom, and you can subtract to get the height of the tower.
You should get 55(√3 - 1)
top/55 = tan 60°
bottom/55 = tan 45°
Now just evaluate top and bottom, and you can subtract to get the height of the tower.
You should get 55(√3 - 1)
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