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Height and Distance - General Aptitude

Q1:

The angle of elevation of the sun, when the length of the shadow of a tree 3 times the height of the tree, is:

A 30°

B 45°

C 60°

D 90°

ANS:A - 30°

Let AB be the tree and AC be its shadow. Let ACB = .

Then, AC = 3          cot  = 3
AB
  = 30°.