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From a point on the ground, the angles of elevation of the bottom and top of a tower fixed at the top of a 20 m high building are 45 o& 60 o

respectively. Find the height of the tower.


It would come as 14.6m becoz u are given that ht of building is 20m and angle of elevation is 45 so applying trignomatric ratio   tan45=1base comes to be 20m and than applying tan60=root3 to whole fig. we get the answer. 
1 5 1
Tan 45=20÷x
tan 60=h+20÷x
=by transposition
so the height of the tower is
1 4 1
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