List of top General Aptitude Questions on Trigonometry

The angles of elevation of the top of a tower from two points at a distance of 5 meters and 20 meters along the same straight line from the base of the tower, are complementary. Find the height of the tower.
A ladder leaning against a wall makes an angle of 45° with the ground. If the length of the ladder is 10 m, what is the distance of the foot of the ladder from the wall?
If $\sin A = \frac{4}{5}$, then $(3 − \tan A)(2 + \cos A)$ is: