1.

From the top of the house 18m high, if the angle of elevation of the top of a tower is 45° and the angle of depression of the foot of the tower is 30°, then the height of the tower is

Answer»

`18sqrt(3)` m
`18(SQRT(3)+1)` m
`18(sqrt(3)-1) m`
`6sqrt(3)`m

ANSWER :B


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