The angle of depression of a point situated at a distance 500 m from the base of tower is $45°$. The height of tower is _____.

If the angles of elevations of the top of a tower from two points at distances a and b from the base and in the same straight line with it are complementary then the height of the tower is

From a point P on the ground the angle of elevation of the top of 10 m high building is $30°$. A flag is hoisted at the top of the building and the angle of elevation of the top of the flagstaff from the point P is $45°$. Length of the flagstaff is:

(Take $\sqrt{3} = 1.732$)

If a 30 meter ladder is placed against a 15 meter wall such that it just reaches the top of the wall, then the elevation of the ladder with wall is?

In $\triangle ABC$ with AB = 5 cm, BC = 12 cm, AC = 13 cm and $\angle B = 90^\circ$, which of the following is/are not correct?

(a) $\tan C = \frac{12}{13}$

(b) $\text{cosec} A = \frac{13}{12}$

(c) $\sin B = \frac{5}{13}$

(d) $\tan A = \frac{12}{15}$

(e) $\cos C = \frac{12}{13}$

Choose the correct answer from the options given below:

The angle of elevation of a cloud from a point 200 meter above a water body is 30° and the angle of depression of its reflection in the water body is 60°. The height of the cloud in meter is:

The angle of elevation from a point situated at a distance of 70 meter from the base of a tower is $60^0$. The height of the tower is: