Some Applicatio...

From the top of the house 18 m high if the angle of elevation of the top of a tower is $$\displaystyle 45^{\circ}$$ and the angle of depression of the foot of the tower is $$\displaystyle 30^{\circ}$$, then the height of the tower is

A tower subtends an angle $$\displaystyle \alpha $$ at point 'A' in the plane of its base and the angle of depression of the foot of the tower at height 'b' just above A is $$\displaystyle \beta  $$. The height of the tower is

A man in a boat rowed away from a cliff $$50$$ m high It takes $$2$$ minutes to change the elevation at the top of the cliff from $$\displaystyle   60^{\circ}  $$ to $$\displaystyle   45^{\circ}  $$ The speed of the boat is 

A kite is flying with the string inclined at $$\displaystyle 45^{\circ}$$ to the horizontal   If the string is straight and 50 m long the height at which the kite is flying is 

The distance between two buildings is $$24\ \text{m}$$. The heights of the buildings are $$12\ \text{m}$$ and $$22\ \text{m}$$. Find the distance between the tops (in $$\text{m}$$).

The angle of elevation at the top of a tower from a point 10 m from the foot of the tower is $$\displaystyle  30^{\circ}   $$  The height of the tower is 

A ladder of a fire truck is elevated to an angle of $$60^{\circ}$$ and extended to a length of $$70\ feet$$. If the base of the ladder is $$7\ feet$$ above the ground, how many feet above the ground does the ladder reach? 

If the object to be viewed is below the level of the observer, then the angle by which the observer lowers his head down is called _____.

A tower subtends at angle $$\displaystyle\theta$$ at a point P on the same level as the foot of the tower and from a point h m above P the depression of the foot of the tower is $$\displaystyle\alpha$$ . The height of the tower is (in m)

At a certain instant the ratio of the length of a pilar and its shadow are in ratio $$1:$$$$\sqrt3$$. At that instance, the angle of elevation of the sun is _____