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The angle of elevation of the top of a tower from a point 20m away from its base is 60 ∘ . The height of the tower is-
  1. 20 m
  2. 33 m
  3. 34.64 m
  4. 44.64 m
Explanation

We can solve this problem using trigonometry.

Let's denote:

  • ℎ as the height of the tower,
  • 𝑑 as the horizontal distance from the point to the base of the tower,
  • 𝜃 as the angle of elevation (which is 60 degrees in this case).

In a right triangle formed by the tower, the horizontal distance, and the line of sight to the top of the tower, we have:

tan⁡(𝜃)=ℎ𝑑

Given that 𝜃=60∘ and 𝑑=20 meters, we can plug in these values and solve for ℎ:

tan⁡(60∘)=ℎ20

3=ℎ20

ℎ=20×3

ℎ≈20×1.732

ℎ≈34.64

So, the height of the tower is approximately 34.64 meters.

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