Deepak Bora
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In the given figure, the angle of elevation of the top of a tower from a point C on the ground, which is 30 m away from the foot of the tower, is 30°. Find the height of the tower.

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CBSE 10th Class Mathematics
Past year question paper
Year 2020
SET 1, Code Number  – 30/5/1
Question Number –  16
Trigonometric function Sin, cos and tan
trigonometric relation

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1 Answer

  1. Use tan θ = opposite side / adjacent side

    here,

    tan θ = AB/30

    AB = Height of the tower

    tan 30° × 30= AB

    AB = [1/√3] ×  30

    AB = 10√3 m

    ∴ Height of the tower is 10√3 m

     

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