Q. A TV tower stands vertically on a bank of a canal. From a point on the other bank direct opposite the tower is 60 ° . From another point 20 m away from this point on the joining this point to the foot of the tower, the angle of elevation of the top of the tower is 30 °  (see the given figure). Find the height of the tower and the width of the canal.

 

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Hi siddharth, thank you so much, u made the concept clear. I was very worried. Thankyou again
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