1:
An aeroplane is flying at a height of 2500 m. It is found that the angles of depression of the two points situated at opposite bank of river are 45 degree and 60 degree. What will be the length of the river?

Options:

- 2546.2 m
- 5824.23 m
- 3943.33 m
- none of the above

Answer: Option 3

Explanation:

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2:
From the top of 50m high hill, the angles of depression of the top and the bottom of a tower are 30 degree and 45 degree. Find the height of the tower.

Options:

- 21.13 m
- 24.23 m
- 28.13 m
- 18.13 m

Answer: Option 1

Explanation:

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3:
A chimney and a tower are situated vertically on a horizontal plane. From the top of the tower the angles of depression of top and bottom of the chimney are 30 degree and 60 degree respectively. If the height of the chimney is 100 m, what will be the height of the tower?

Options:

- 140 m
- 160 m
- 130 m
- 150 m

Answer: Option 4

Explanation:

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4:
From the top of the hill, the angles of depression of the top and the bottom of 12 m high building are 30 degree 60 degree respectively. What will be the height of the hill?

Options:

- 21 m
- 24 m
- 18 m
- 28 m

Answer: Option 3

Explanation:

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5:
A building surmounted by a flag, from a point on the ground 20 m away from the foot of the building, the angles of elevation of the top of building and flag are 45 degree and 60 degree respectively. What will be height of the building and the length of the flag?

Options:

- 20 m & 14.64 m
- 15 m & 20.64 m
- 35 m & 19.6 m
- 45 m & 20.5 m

Answer: Option 1

Explanation:

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6:
A person observed from the top of an electric pole, the angle of depression of a point is 60 degree. If the distance between the foot of the electric pole and the point is 25 m, the height of electric pole would be

Options:

- 50.3 m
- 35.6 m
- 59.5 m
- 43.3 m

Answer: Option 4

Explanation:

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7:
The anlge of elevation of the top of the tower from a point 200 m away from the tower is 45 degree. What will be the height of the tower?

Options:

- 100 m
- 300 m
- 200 m
- none of the above

Answer: Option 3

Explanation:

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8:
From the top of 50 m high light house, the angle of depression of the ship is 60 degree. What will be the distance between ship and light house?

Options:

- 50.2 m
- 25.6 m
- 40.9 m
- 34.64 m

Answer: Option 4

Explanation:

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9:
The angle of elevation is always -------angle.

Options:

- right angle
- obtuse
- straight
- acute

Answer: Option 4

Explanation:

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10:
At any time if the angle of elevation of the sun is 45 degree, then the height of the tower will be ------ to its shadow

Options:

- double
- half
- equal
- can't say

Answer: Option 3

Explanation:

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