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NDA2018MathematicsHeights and DistancesActual

The top of a hill observed from the top and bottom of a building of height h is at angles of elevation 6 and 3 respectively. What is the height of the hill?

Options

  1. A2h
  2. B3h/2
  3. Ch
  4. Dh/2

Correct answer

B. 3h/2

Step-by-step solution

From question, In PQR and PST . aligned & B = H 3 = H -h 6 & H 3 = H -h & 2 3 H =h & H = 3 2 h aligned

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