1) The angle of elevation of the top of the building at a distance of 50 m from its foot on a horizontal
plane is found to be 60 degree. Find the height of the building.

the height of the building is 86.6m

Step-by-step explanation:

In the right triangle, the height which we are looking for is the opposite side, since it is opposite to the angle 60°

Now we need to find the height of the building

tanθ = Opposite side/Adjacent side

tan 60° = Opp side/Adj side

1.7321 = Opp side/50

1.7321 x 50 = Opp side

Opp side = 50 x 1.7321

Opp side = 86.6 m

Therefore, the height of the building is 86.6m.

astronomers is your final answer! : )

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step-by-step explanation: