From a point "A" on the ground, the angle of elevation

Let BC length of the tower 12 metresIn right triangle ABCtan30 o BCABSo, 13 12ABSo, AB 123 m

to the top of a tower measuring 12 meters in height is 30°. Determine the horizontal distance between point "A" and the base of the tower.

A 12 m Correct Answer Incorrect Answer

B 4√3 m Correct Answer Incorrect Answer

C 8 m Correct Answer Incorrect Answer

D 12√3 m Correct Answer Incorrect Answer

Solution

Let BC = length of the tower = 12 metres
In right triangle ABC;

tan30 ^o = (BC/AB)

So, (1/√3) = (12/AB)

So, AB = 12√3 m

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