When an observer sees an object situated in upward direction, the angle formed by line of sight with horizontal line |
Line of Sight |
When an observer sees an object situated in downward direction the angle formed by line of sight with horizontal line |
Angle of elevation |
Line segment joining the object to the eye of the observer |
Angle of Depression |
The tops of two poles of height of height 16m and 10 m connected by a wire of length of length L meters.The wire makes an angle of 300,the value of L is |
20/√3 m |
A ladder 50m long just reaches the top of a vertical wall. If the ladder makes an angle of 600 with the wall, the height of the wall. |
2.5 m |
From a point 20m away from the foot of a tower, the angle of elevation of top of the tower is 30°, the height of the tower is |
25 m |
When an observer sees an object situated in upward direction, the angle formed by line of sight with horizontal line |
Angle of elevation |
When an observer sees an object situated in downward direction the angle formed by line of sight with horizontal line |
Angle of Depression |
Line segment joining the object to the eye of the observer |
Line of Sight |
The tops of two poles of height of height 16m and 10 m connected by a wire of length of length L meters.The wire makes an angle of 300,the value of L is |
2.5 m |
A ladder 50m long just reaches the top of a vertical wall. If the ladder makes an angle of 600 with the wall, the height of the wall. |
25 m |
From a point 20m away from the foot of a tower, the angle of elevation of top of the tower is 30°, the height of the tower is |
20/√3 m |
Given below are the links of some of the reference books for class 10 math.
You can use above books for extra knowledge and practicing different questions.
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