The height of the mobile tower is 40sqrt...

The height of the mobile tower is `40sqrt3` metre. The angle of elevation of the top of the tower from a point a distance 120 metre from the foot of the tower is

`30^@`

`45^@`

`60^@`

none of these.

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UNITED BOOK HOUSE-Application of Trigonnometric Ratios : Heights of Distance-Exercise

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