A TV tower stands vertically on aof a canal. From a point on the other

1.	A TV tower stands vertically on aof a canal. From a point on the otherbank directly opposite the tower, theangle of elevation of the top of thetower is 60°. From another point 20 maway from this point on the line joingthis point to the foot of the tower, theangle of elevation of the top of thetower is 30° (see Fig. 9.12). Find theheight of the tower and the width ofthe canal.DFrom the top of a 7 m high building, the angle of el
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A TV tower stands vertically on aof a canal. From a point on the otherbank directly opposite the tower, theangle of elevation of the top of thetower is 60°. From another point 20 maway from this point on the line joingthis point to the foot of the tower, theangle of elevation of the top of thetower is 30° (see Fig. 9.12). Find theheight of the tower and the width ofthe canal.DFrom the top of a 7 m high building, the angle of el

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