The length of the shadow of wall of height 8 m is 5 m. At the same time the length of shadow of tower of height is 50 m its length of the shadow is

If the angle of elevation of the sun is 60° then the ratio of height of a tree with its shadow is

The angle of elevation of a top of the tower from a point 120 m. from its foot is 45°. How much the tower is to be raised when the elevation is to be 60° at the same point ?

A ladder 19 m leaning to wall at 60° with the ground, the distance from foot to the wall is

From a ship mast head 150 m high the angle of depression of a boat is observed to be 60° its distance from the ship is ………

Sin (2 × 30°) = 2 Sin 30° statement is

Sin a = $\frac{x}{y}\backslash frac\{x\}\{y\}$ ; cos a = $\frac{a}{b}\backslash frac\{a\}\{b\}$ then $\frac{bx}{ay}\backslash frac\{bx\}\{ay\}$ represent

The length of shadow of a tree of 8 m long, When the sun’s angle of elevation is 45° is ……………… m.

The angle of elevation of the top of a tower from a point on the ground which is 30 m away from the foot of the tower is 30°. Then the height of the tower is

In the adjacent figure ‘$\theta \backslash theta$’ is called as angle of