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Q:

From the top of a platform 5 m high, the angle of elevation of a tower was 30 deg. If the tower was 45 m high, how far away from the tower was the platform positioned?

A) 15√3 m B) 40√3 m
C) 45√3 m D) 40 m
 
Answer & Explanation Answer: B) 40√3 m

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Q:

The angle of elevation of the top of a 36 m tall tower from the initial position of a person on the ground was 60 deg. She walked away in a manner that the foot of the tower, her initial position and the final position were all in the same straight line. The angle of elevation of the top of the tower from her final position was 30 deg. How much did she walk from her initial position?

 

A) 24√3 m B) 12√3 m
C) 24 m D) 36√3 m
 
Answer & Explanation Answer: D) 36√3 m

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Q:

The angle of elevation of the top of a tower at a distance of 25 m from its foot is 60 deg. The approximate height of the tower is

A) 20.3 m B) 15.3 m
C) 36.3 m D) 43.3 m
 
Answer & Explanation Answer: D) 43.3 m

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Q:

From the top of a building, the angles of elevation and depression of top and bottom of a tower are 60 deg and 30 deg respectively. If the height of the building is 5m, then the height of the tower is

A) 20 m B) 15 m
C) 10√3 m D) 5√3 m
 
Answer & Explanation Answer: A) 20 m

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Q:

From the top of a platform, the angle of elevation of a tower was 30 deg. The tower was 45 mts high and the horizontal distance between the platform and the tower was 40√3 m. What was the height of the platform?

A) 40 m B) 5 m
C) 45√3 m D) 20√3 m
 
Answer & Explanation Answer: B) 5 m

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Q:

The angle of depression of the foot of a building from the top of a tower 30 m away is 30 deg. How high is the tower?

A) 10√3 m B) 20√3 m
C) 30 m D) 20 m
 
Answer & Explanation Answer: A) 10√3 m

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Q:

Which of the following countries has built the world's biggest air purifier, a 328 feet high tower, to combat air pollution?

 

A) Germany B) India
C) Australia D) China
 
Answer & Explanation Answer: D) China

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Q:

The angle of elevation of the top of a hill at the foot of the tower is 60 deg and the angle of elevation of the top of the tower from the foot of the hill is 30 deg. If the tower is 50 m high, what is the height of the hill?

A) 100 m B) 120 m
C) 180 m D) 150 m
 
Answer & Explanation Answer: D) 150 m

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