Question:
A person standing on the bank of a river observes that the angle of elevation of the top of a tree on the opposite bank of the river is \(60^\circ\) and when he retires 40 metres away from the tree, the angle of elevation becomes \(30^\circ\). The breadth of the river is
A person standing on the bank of a river observes that the angle of elevation of the top of a tree on the opposite bank of the river is \(60^\circ\) and when he retires 40 metres away from the tree, the angle of elevation becomes \(30^\circ\). The breadth of the river is
Updated On: Dec 1, 2025
- 40 m
- 20 m
- 30 m
- 60 m
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The Correct Option is B
Solution and Explanation
The correct option is (B) : 20 m
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