Question

The angles of the elevation of the
top of a building from the top
and bottom of a tree are 30 degree and
60° respectively if the height of the
tree is 40m, then the height of
the building is.
​

Answer 1

Answer:

the height of the building is 60 m

Step-by-step explanation:

let us take the height of building be x m

tan 30 = X-40/adj

tan 60 = X/adj

adj = root 3 × X

X = √3(√3X-40√3)

X=60m

Answer 2

Answer:

20[(√3+1)+2]

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