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From a point on the ground the angles...

From a point on the ground the angles of elevation of the bottom and top of a transmission tower fixed at the top of 20m high building are `45o` and `60o` respectively. Find the height of the transmission tower.

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The correct Answer is:
`20(sqrt(3)-1)` m
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EDUCART PUBLICATION-INTRODUCTION TO TRIGNOMETRY AND ITS APPLICATIONS -LONG ANSWER TYPE QUESTIONS
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