Question

A boy, 1.4 metre tall standing at the edge of a river
bank sees the top of a tree on the edge of the other
bank at an elevation of 55°. Standing back by 3 metre,
he sees it at elevation of 45°.
(a) Draw a rough figure showing these facts.
(b)How wide is the river and how tall is the tree?
(sin 55° = 0.8192. cos 55° = 0.5736, tan 55° = 1.4281]



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Answer 1

Answer:

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