Question

Example 12 A person standing on the bank of a river observes that the angle of elevation
of the top of a tree standing on the opposite bank is 60°. When he moves 50 m away
from the bank he finds that the angle of elevation to be 30°. Calculate :
(i) the width of the river and (ii) the height of the tree.
(2003)​

Answer 1

Step-by-step explanation:

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