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While standing atop a building 45.9 m tall, you spot a friend standing on a street...

While standing atop a building 45.9 m tall, you spot a friend standing on a street corner. Using a protractor and a dangling plumb bob, you find that the angle between the horizontal and the direction to the spot on the sidewalk where your friend is standing is 25.1°. Your eyes are located 1.74 m above the top of the building. How far away from the foot of the building is your friend?

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Answer #1

Solution,

tan 25.1 = (position) /x

x = (45.9 +1.74) / tan25.1

x = 101.70 m

Comment in case any doubt please rate my answer.....

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