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Grade 12th PassMost Scoring Topics in IIT JEE

From the foot of a hill, the angle of elevation of the top of a tower is found to be 45 degree. After walking 21 kms. upwards along the slope of the hill, which is inclined at 30 degree, the same is formed to be 60 degree. Find the height of the hill along with the tower.

Profile image of Vikas TU
15 Years agoGrade 12th Pass
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1 Answer

Profile image of SAGAR SINGH - IIT DELHI
15 Years ago

Dear student,

This is a basic Trignometry questions(10th class)

Use tan theta= Perpendicular/base

Now eliminate the common side and you will get the height of the hill easily....

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