A  TV tower stands vertically on a bank of a canal. The tower is watched from a point on the other bank directly opposite to it.The angle of elevation of the top of the tower is 58. From another point 20m away from this point on the line joining this point to the foot of the tower, the angle of elevation of the top of the tower is 30. Find the height of the tower and width of the canal

( tan58 = 1.6003)