By Poonam

Verified by Ajay Kumar

Two vertical poles stand on the ground, 50 meters apart. The height of the smaller pole is 10 meters. From the top of the smaller pole, the angle of elevation of the top of the taller pole is 30°. Find the height of the taller pole.

  1. 35.20 m

  2. 38.87 m

  3. 40.12 m

  4. 42.25 m

Answer: B

Solution

Let the taller pole's height be H. tan 30° = (H − 10)/50. Therefore, H − 10 = 50/√3 and H = 10 + 50/√3 ≈ 38.87 m.

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