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  1. The angle of elevation of a tower from a distance of 100 metre from its foot is 30°. Then the height of the tower is
    1. 50 √3 metre
    2. 100 √3 metre
    3. 50
      		metre
      √3
    4. 100
      		metre
      √3
Correct Option: D


AB = Tower = h metre
From ∆ABC,

tan 30° =
AB
BC

⇒
1
 =
h
√3100

>⇒ h =
100
metre
√3


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