4 . Cyrille stands 1.5 km from a vertical tower . He estimates the angle between the horizontal and the top of the tower as 21.7 and uses it to find the height of the tower .
( a ) Find the height of the tower according to Cyrille ’ s calculation , correct the answer to the nearest metre .
[ 3 ] ( b ) The actual height of the tower is 603 m . Calculate the percentage error made when calculating the height of the tower . [ 2 ]
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