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The angle of elavation of the top of the tower from a point A on the ground is 30 degree. on moving a distance of 20 meteres towards the foot of the tower

to a point B the angle of elavation increaces to 60 degree. find the height of the tower and the distance of the tower from the point A


In rt angle ΔAQR, right angle at Q,
let QR=x metre be the height of the tower and let AB= 20merte
Also take BQ=y meter.
sub 1 in 2,
Hence the height of the tower=17.32metres
     The distance from the point A to the tower=30metres
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