MEDIUM
10th CBSE
IMPORTANT
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A path separates two walls. A ladder leaning against one wall rests at a point on the path. It reaches a height of 90 m on the wall and makes an angle of 60° with the ground. If while resting at the same point on the path, it were made to lean against the other wall, it would have made an angle of 45° with the ground. The height, it would have reached on the second wall is _____ m (Round off the final answer upto two decimal places)

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Important Questions on Heights & Distances

HARD
10th CBSE
IMPORTANT

A carpenter makes stools for electrician with a square top of side 0.5 m and at a height 1.5 m above the ground. Also each leg is inclined at an angle of 60° to the ground. Find the length of each leg and also the lengths of two steps to be put at equal distances in metres.

HARD
10th CBSE
IMPORTANT
At the foot of a mountain the elevation of its summit is 45° after ascending 1000 m towards the mountain up a slope of 30° inclination, the elevation is found to be 60°. Find the height of the mountain.
MEDIUM
10th CBSE
IMPORTANT
There is a small island in the middle of a 100 m wide river and a tall tree stands on the island. P and Q are points directly opposite each other on the two banks, and in line with the tree. If the angles of elevation of the top of the tree from P and Q are respectively 30° and 45°, find the height of the tree. 
MEDIUM
10th CBSE
IMPORTANT
From a building 60 meters high, the angles of depression of the top and bottom of a lamp post are 30° and 60° respectively. Find the distance between the lamp post and the building. Also, find the difference of height between the building and the lamp post. 
MEDIUM
10th CBSE
IMPORTANT
A contractor plans to install two slides for the children to play in a park. For the children below the age of 5 years, she prefers to have a slide whose top is at a height of 1.5 m, and is inclined at an angle of 30° to the ground, whereas for elder children, she wants to have a steep slide at a height of 3 m, and inclined at an angle of 60° to the ground. What should be the length of the slide in each case.
EASY
10th CBSE
IMPORTANT
The ratio of the length of a pole and its shadow is 1:3. The angle of elevation of the sun is:
EASY
10th CBSE
IMPORTANT
A ladder of 10 m length touches a wall at a height of 5 m. The angle θ made by it with the horizontal is
EASY
10th CBSE
IMPORTANT
The measure of angle of elevation of top of tower 753 m high from a point at a distance of 75 m from foot of tower in a horizontal plane is