Manu and nandu stand on either side of a building.manu sees the top of the building at an elevation of 45 degree and nandu sees it an elevation of 60 degree. The distance between the children is 100 metres. The building and the children are on the same line
a) draw a rough figure based on the given details?
b) what is the height of the building
Answers
Some Applications of Trigonometry Two Marks Questions
10th Standard CBSE
Maths
Time : 00:45:00 Hrs
Total Marks : 30
1.
The angle of elevation of the top of a tower from a point on the ground, which is 30 m away from the foot of the tower is 30o . Find the height of the tower.
2
2.
From a point on the ground, the angles of elevation of the bottom and the top of a transmission tower fixed at the top of a 20 m high building are 45o and 60o respectively. Find the height of the tower.
2
3.
The angle of elevation of the top of a building from the foot of a tower is 30o and the angle of elevation of the top of the tower from the foot of the building is 60o. If the tower is 50 m high, find the height of the building.
2
4.
From the top of a 7 m high building, the angle of elevation of the top of a cable tower is 60o and the angle of depression of its foot is 45o. Determine the height of the tower.