Angle Of Elevation
Angle Of Elevation
Angle of Elevation: An angle of elevation is the angle made by the line of sight to the top of the object and the horizontal line. It is above the horizontal line i.e. the angle of elevation is made when we look up to the object. In the figure below the angle of elevation is the angle between the line of sight and the horizontal level.
Illustration: The angle of elevation of the top of a tower at the top and the foot of a pole of height 10 m are and
respectively. Find the height of the tower.
SOLUTION: Let AB and CD be the pole and tower respectively.
Let CD = h
Then and
Now
Again
Hence, height of the tower = 15 m
The shadow of an 8 inch long pencil standing vertically on a table is | |||
| Right Option : B | |||
| View Explanation |
If the lenght of the shadow of a pole is equal to the height of the pole, the angle of elevation of the sun's altitude is | |||
| Right Option : C | |||
| View Explanation |
The lenght of the shadow of a pole is | |||
| Right Option : D | |||
| View Explanation |
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