11. ATV tower nds vertically on a bankof 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 the Dtower is 30° (see Fig. 9.12). Find the (height of the tower and the width ofthe canal6020mFig. 9.12

11. ATV tower nds vertically on a bankof a canal from a point on the o

1.	11. ATV tower nds vertically on a bankof 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 the Dtower is 30° (see Fig. 9.12). Find the (height of the tower and the width ofthe canal6020mFig. 9.12
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