The angle of elevation of the top of a tower from

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The angle of elevation of the top of a tower from a point on ground which is 30 mtrs. away from the foot of the tower is 30°. Height of the tower is:

[IB Security 2019 With Answers]

A 10/√3 mtrs.

B 10 × √3 mtrs.

C 100 mtrs.

D 20 mtrs.