A boat has to cross the river.It crosses the river by making an angle of 60 with the bank of river due to stream of the river and travels a distance of 600 m to reach the another side of the river.What is the width of the river?
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Answer:
let
AB,CD are the bank of river
the distance PR =60
width is QR
In ABC triangle
sin 60=QR÷PR
√3÷2=QR÷600
√3=QR÷300
QR=300√3
The width of QR=300√3
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