MEDIUM
JEE Advanced
IMPORTANT
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A tower subtends an angle of 30° at a point distant d from the foot of the tower and on the same level as the foot of the tower. At a second point, h vertically above the first, the angle of depression of the foot of the tower is 60°. The height of the tower is

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Important Questions on Properties of Triangles, Heights and Distances

EASY
JEE Advanced
IMPORTANT
The angle of depression of a point situated at a distance of 70 m from the base of a tower is 45°. The height of the tower is
EASY
JEE Advanced
IMPORTANT
The horizontal distance between the two towers is 60 m. The angular elevation of the top of the taller tower as seen from the top of the shorter one is 30°. If the height of the taller tower is 150 m, the height of the shorter one is
EASY
JEE Advanced
IMPORTANT
If the elevation of the Sun is 30°, then the length of the shadow cast by a tower of 150 ft height, is
MEDIUM
JEE Advanced
IMPORTANT
An aeroplane flying at a height of 300 m above the ground passes vertically above another plane at an instant when the angle of elevation of the two planes from the same point on the ground are 60° and 45°, respectively. Then, the height of the lower plane from the ground (in metre) is
MEDIUM
JEE Advanced
IMPORTANT
A person walking along in a straight road observes that at two points 1000 m apart, the angles of elevation of a vertical tower in front of him are π6 and 5π12. The height of the tower is equal to
HARD
JEE Advanced
IMPORTANT
A chimney of 20 m high, standing vertically on the top of a building, subtends an angle tan-116 at a distance of 70 m from the foot of the building. The height of the building is
HARD
JEE Advanced
IMPORTANT
A and B are two points 30 m apart in a line on the horizontal plane through the foot of a tower lying on opposite sides of the tower. The distances of the top of the tower from A and B are 20 m and 15 m respectively. If the angle of elevation of the top of the tower at A is θ and the height of the tower is h, then
HARD
JEE Advanced
IMPORTANT
The longer side of a parallelogram is 10 cm and the shorter is 6 cm. If the longer diagonal makes an angle 30° with the longer side, then length of the longer diagonal is