CBSE Class 10 Maths Applications of Heights and Distances
Q.
Which of the following trigonometric ratios can be used in the given figure?
Q.
When can tan or cot of an angle be used in the given problem?
Q.
At a certain instant, the ratio of the lengths of a pillar to its shadow is √3:1. At this instant the angle of elevation of the Sun is
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- the angle of elevation of a cloud from a point h metre above a lake is theta. the angle of depression of its reflection in the lake is 45 degree. Find the height of the cloud
- a fire in the building Bis reported on telephone to two fire staitons P and Q, 20 km apart from each other on a straight road P observes that the fire is at an angle of 60 degree to the road and Q observes that it is at an angle of 45 degree to the road. What station should send its team and how much time will this team have to travel?
- from a point on the ground the angles of elevation of the bottom and top of a communication tower fixed on the top of a 20 meter high building a 45 degree and 60 degree respectivelyf.find the height of the tower.
- From the top of a building 60 d high, the angles of depression of the top and the bottom of a tower are observed to be 30°and 60° respectively. Find the height of the tower.
- a boat is viewed from the top of a hill which is 100 meter above the sea the angle of depression being 60 degree .find the horizontal distance of the observation point in meter
- Pls explain
- as observed from the top of the lighthouse, 100m high above sea level , the angle of depression of a ship changes from 30 degrees to 45 degrees. determine the distance travelled by ship during the period of observation.
- Determine the height of the mountain if the elevation of it's top at an unknown distance from the base is 30°and at a distance10km further off from the mountain along the same line the angle of elevation is 15°(use tan 15°=0.27)
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