There is a small island in middle of 100 m wide river and a tall tree stands on island. P and Q are points directly opposite to each other on two banks. If angles of elevation is 30 and 45 .

There is a small island in middle of 100 m wide river and a tall tree

1.	There is a small island in middle of 100 m wide river and a tall tree stands on island. P and Q are points directly opposite to each other on two banks. If angles of elevation is 30 and 45 .
A.	17.7 m
B.	28.8 m
C.	36.6 m
D.	42.2 m
Answer» D. 42.2 m

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There is a small island in middle of 100 m wide river and a tall tree stands on island. P and Q are points directly opposite to each other on two banks. If angles of elevation is 30 and 45 .

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