Question

A man standing on the bank of a river observe the angle of elevation of the top of tree at tge opposite bank 30 from his eyes and the angle of depression of image of top in water os 60 if the height of the man is 1.5m fond the height of tree above water level

Answer 1

Given that ∠BCA = 60° and ∠ BDA= 30°. Thus , width of the river is 25 m . Hence , height of the tree is 43.3 m .

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