Height and Distance: Mastering Concepts for Competitive Exams

Height and Distance

Q. A kite is flying at a height of 50 meters. If the angle of elevation from a point on the ground is 30 degrees, how far is the point from the base of the kite?

A. 50√3
B. 25√3
C. 75√3
D. 100√3

Solution

distance = height / tan(30) = 50 / (1/√3) = 50√3 meters

Correct Answer: A — 50√3

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Q. A kite is flying at a height of 50 meters. If the angle of elevation from a point on the ground to the kite is 60 degrees, how far is the point from the base of the kite?

A. 25√3 meters
B. 50 meters
C. 50√3 meters
D. 75 meters

Solution

Distance = height / tan(angle) = 50 / (√3/3) = 50 * 3/√3 = 25√3 meters.

Correct Answer: A — 25√3 meters

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Q. A kite is flying at a height of 50 meters. If the angle of elevation from a point on the ground to the kite is 60 degrees, how far is the point from the base of the kite's height?

A. 25 meters
B. 30 meters
C. 35 meters
D. 40 meters

Solution

Distance = height / tan(angle) = 50 / √3 = 50 / 1.732 = 28.87 meters.

Correct Answer: A — 25 meters

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Q. A kite is flying at a height of 60 meters. If the angle of elevation from a point on the ground to the kite is 30 degrees, how far is the point from the base of the kite?

A. 60√3 meters
B. 30√3 meters
C. 20√3 meters
D. 10√3 meters

Solution

Distance = height / tan(angle) = 60 / (1/√3) = 60√3 meters.

Correct Answer: A — 60√3 meters

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Q. A kite is flying at a height of 60 meters. If the angle of elevation from a point on the ground to the kite is 45 degrees, how far is the point from the base of the kite?

A. 30 meters
B. 40 meters
C. 60 meters
D. 70 meters

Solution

Distance = height / tan(angle) = 60 / 1 = 60 meters.

Correct Answer: C — 60 meters

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Q. A ladder 10 meters long leans against a wall. If the foot of the ladder is 6 meters away from the wall, how high does the ladder reach on the wall?

A. 8 meters
B. 9 meters
C. 10 meters
D. 7 meters

Solution

Using Pythagoras: height = √(10^2 - 6^2) = √(100 - 36) = √64 = 8 meters.

Correct Answer: A — 8 meters

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Q. A ladder 10 meters long reaches a window 8 meters above the ground. What is the angle of elevation of the ladder from the ground?

A. 30 degrees
B. 45 degrees
C. 60 degrees
D. 75 degrees

Solution

Using sin(θ) = opposite/hypotenuse, sin(θ) = 8/10, θ = sin⁻¹(0.8) ≈ 53.13 degrees.

Correct Answer: C — 60 degrees

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Q. A ladder 10 meters long reaches a window 8 meters high. How far is the base of the ladder from the wall?

A. 6 meters
B. 4 meters
C. 5 meters
D. 3 meters

Solution

Using Pythagoras: base = √(10^2 - 8^2) = √(100 - 64) = √36 = 6 meters

Correct Answer: A — 6 meters

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Q. A ladder 10 meters long reaches a window 8 meters high. What is the angle of elevation of the ladder from the ground?

A. 30 degrees
B. 45 degrees
C. 60 degrees
D. 75 degrees

Solution

Using sin(θ) = opposite/hypotenuse, sin(θ) = 8/10, θ = arcsin(0.8) = 53.13 degrees.

Correct Answer: C — 60 degrees

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Q. A ladder 20 meters long reaches a window 15 meters above the ground. What is the angle of elevation of the ladder from the ground?

A. 30 degrees
B. 45 degrees
C. 60 degrees
D. 75 degrees

Solution

Using sin(θ) = opposite/hypotenuse, sin(θ) = 15/20, θ = sin⁻¹(0.75) ≈ 48.6 degrees.

Correct Answer: C — 60 degrees

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Q. A ladder 20 meters long reaches a window 16 meters above the ground. What is the angle of elevation of the ladder from the ground?

A. 30 degrees
B. 45 degrees
C. 60 degrees
D. 75 degrees

Solution

Using sin(θ) = opposite/hypotenuse, sin(θ) = 16/20, θ = sin⁻¹(0.8) ≈ 60 degrees.

Correct Answer: C — 60 degrees

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Q. A ladder 25 meters long leans against a wall. If the foot of the ladder is 7 meters away from the wall, how high does the ladder reach on the wall?

A. 24 meters
B. 20 meters
C. 21 meters
D. 22 meters

Solution

Using Pythagoras: height = √(25^2 - 7^2) = √(625 - 49) = √576 = 24 meters

Correct Answer: B — 20 meters

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Q. A ladder is leaning against a wall. If the foot of the ladder is 6 feet away from the wall and the top of the ladder reaches a height of 8 feet, what is the length of the ladder?

A. 10 feet
B. 12 feet
C. 14 feet
D. 16 feet

Solution

Using the Pythagorean theorem, length of ladder = √(6^2 + 8^2) = √(36 + 64) = √100 = 10 feet.

Correct Answer: A — 10 feet

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Q. A ladder is leaning against a wall. If the foot of the ladder is 6 meters away from the wall and the top of the ladder reaches a height of 8 meters on the wall, what is the length of the ladder?

A. 10 meters
B. 12 meters
C. 14 meters
D. 16 meters

Solution

Using the Pythagorean theorem, length of ladder = √(6^2 + 8^2) = √(36 + 64) = √100 = 10 meters.

Correct Answer: A — 10 meters

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Q. A ladder is leaning against a wall. If the foot of the ladder is 6 meters away from the wall and the top of the ladder reaches a height of 8 meters, what is the length of the ladder?

A. 10 meters
B. 12 meters
C. 14 meters
D. 16 meters

Solution

Using the Pythagorean theorem, length of ladder = √(6^2 + 8^2) = √(36 + 64) = √100 = 10 meters.

Correct Answer: A — 10 meters

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Q. A ladder leans against a wall making an angle of 60 degrees with the ground. If the foot of the ladder is 5 meters away from the wall, what is the height of the ladder on the wall?

A. 5√3 meters
B. 10 meters
C. 5 meters
D. 10√3 meters

Solution

Height = 5 * √3 = 5√3 meters.

Correct Answer: A — 5√3 meters

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Q. A man is 40 meters away from a building. If he looks up at an angle of 45° to see the top of the building, how tall is the building?

A. 20 meters
B. 30 meters
C. 40 meters
D. 50 meters

Solution

Using tan(45°) = height/40, height = 40 * tan(45°) = 40 meters.

Correct Answer: C — 40 meters

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Q. A man is 40 meters away from a tower. If he looks at the top of the tower at an angle of elevation of 45 degrees, what is the height of the tower?

A. 20 meters
B. 30 meters
C. 40 meters
D. 50 meters

Solution

Height = distance * tan(45) = 40 * 1 = 40 meters.

Correct Answer: C — 40 meters

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Q. A man is 50 meters away from a building. If he looks up at an angle of 60 degrees to see the top of the building, what is the height of the building?

A. 25 meters
B. 30 meters
C. 35 meters
D. 40 meters

Solution

Height = distance * tan(angle) = 50 * √3 = 50 * 1.732 = 86.6 meters.

Correct Answer: D — 40 meters

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Q. A man is 50 meters away from a tower. If he looks at the top of the tower at an angle of elevation of 45 degrees, what is the height of the tower?

A. 50 meters
B. 25 meters
C. 75 meters
D. 100 meters

Solution

Height = distance * tan(45) = 50 * 1 = 50 meters.

Correct Answer: A — 50 meters

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Q. A man is 50 meters away from a tower. If he looks up at an angle of 45 degrees to see the top of the tower, what is the height of the tower?

A. 25 meters
B. 50 meters
C. 75 meters
D. 100 meters

Solution

Height = distance * tan(45) = 50 * 1 = 50 meters.

Correct Answer: B — 50 meters

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Q. A man is standing 10 meters away from a vertical pole. If he looks at the top of the pole at an angle of elevation of 60 degrees, what is the height of the pole?

A. 5√3 meters
B. 10√3 meters
C. 15√3 meters
D. 20√3 meters

Solution

Using tan(60) = height/distance, height = distance * tan(60) = 10 * √3 = 10√3 meters.

Correct Answer: B — 10√3 meters

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Q. A man is standing 10 meters away from a vertical pole. If he looks up at an angle of 30° to see the top of the pole, what is the height of the pole?

A. 5 meters
B. 10 meters
C. 15 meters
D. 20 meters

Solution

Using tan(30°) = height/10, height = 10 * tan(30°) = 10 * (1/√3) = 10/1.732 = 5.77 meters.

Correct Answer: B — 10 meters

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Q. A man is standing 12 meters away from a vertical pole. If he looks up at an angle of 30 degrees to see the top of the pole, what is the height of the pole?

A. 6 meters
B. 12 meters
C. 8 meters
D. 10 meters

Solution

Height = distance * tan(30) = 12 * (1/√3) = 12/√3 = 4√3 meters.

Correct Answer: A — 6 meters

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Q. A man is standing 15 meters away from a wall. If he looks up at an angle of 30 degrees to see the top of the wall, what is the height of the wall?

A. 5 meters
B. 10 meters
C. 15 meters
D. 20 meters

Solution

Height = distance * tan(angle) = 15 * (1/√3) ≈ 15 * 0.577 = 8.66 meters.

Correct Answer: B — 10 meters

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Q. A man is standing 25 meters away from a vertical pole. If he looks up at an angle of 45 degrees, what is the height of the pole?

A. 25 meters
B. 20 meters
C. 30 meters
D. 15 meters

Solution

Height = distance * tan(angle) = 25 * 1 = 25 meters.

Correct Answer: A — 25 meters

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Q. A man is standing 30 meters away from a building. If the angle of elevation to the top of the building is 60 degrees, what is the height of the building?

A. 15√3 meters
B. 30√3 meters
C. 45 meters
D. 60 meters

Solution

Height = distance * tan(60) = 30 * √3 = 15√3 meters

Correct Answer: A — 15√3 meters

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Q. A man is standing 30 meters away from a tree. If the angle of elevation from his eyes to the top of the tree is 60 degrees, what is the height of the tree?

A. 15 meters
B. 25 meters
C. 30 meters
D. 35 meters

Solution

Height = distance * tan(angle) = 30 * √3 = 30 * 1.732 = 51.96 meters.

Correct Answer: B — 25 meters

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Q. A man is standing 40 meters away from a building. If the angle of elevation to the top of the building is 45 degrees, what is the height of the building?

A. 40 meters
B. 20 meters
C. 30 meters
D. 50 meters

Solution

Height = distance * tan(angle) = 40 * 1 = 40 meters.

Correct Answer: A — 40 meters

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Q. A man is standing 40 meters away from a tower. If the angle of elevation to the top of the tower is 30 degrees, what is the height of the tower?

A. 20√3 meters
B. 40 meters
C. 30 meters
D. 10√3 meters

Solution

Height = distance * tan(30) = 40 * (1/√3) = 40/√3 = 20√3 meters.

Correct Answer: A — 20√3 meters

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Height and Distance

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