# CBSE Class 10 Maths Introduction to Heights and Distances

## Q.

In the angle of depression, the object is below the

## Q.

At a certain instant, the ratio of the lengths of a pillar to its shadow is 1:√2. At that instant, the angle of elevation of the Sun is

## Q.

The line drawn from the eye of an observer to the point in the object where the person is viewing is called the

## Next Videos

- Two buildings face each other. The height of one building is greater than that of the other. The smaller building is 80 m high. The angles of depression of the top and the bottom of the smaller building from the top of the taller building are 45º and 60º respectively. Find the height of the taller building.
- A tree is broken by the wind. The top struck the ground at an angle of 30
^{o}and at a distance of 30 metres from the root. Find the whole height of the tree. - John stands on the bridge and observes that the angles of depression of the banks on opposite sides of river Absyssa are 45º and 60º respectively. The bridge is at a height of 6 m from the banks. Calculate the width of the river Absyssa?
- Rodney stood 30 m away from the light house in such a way that the angle of elevation of the top of the light house from his eyes was 45º. Rodney"s height is 1.4 m. Find the height of the light house.
- The angle of elevation of the top of a tower from a point A on the ground is 30
^{o}. On moving a distance of 20 metres towards the foot of the tower to a point B the angle of elevation increases to 60^{o}. Find the height of the tower and distance of the tower from the point A. - The angles of depression of the top and the bottom of a building 50 metres high as observed from the top of a tower are and respectively. Find the height of the tower and also the horizontal distance between the building and the tower.
- If the length of the shadow of a pole of height is 3 m. find the angle of elevation of the sun.
- A ladder is leaning against a wall making an angle of 60
^{0}with the ground. Find the distance of the foot of the ladder from the wall if the other end is 14 m above the ground? - Define angle of elevation and angle of depression.
- Find the angle of elevation of the sun when the length of shadow of a tower is equal its length.

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