A 5m 60 cm high vertical pole caste a shadow 3m 20 cm long. Find at the same time (i) the length of the shadow cast by another pole 10 m 50 cm high (ii) the height of apole which caste a shadow 5m long.

A vertical pole of length 6 m casts a shadow 4 m long on the ground and at the same time a tower casts a shadow 28 m long.Find the height of the tower.

The length of the shadow of a 9 m high verticel post is 3sqrt3 m.Find the altitude of the sun.[The altitude of the sun is the angle of elevation of the vertex of the post from the front of the shadow of the post].

The breadth of a rectangle is 5 cm. and its area is 100 m^2 . Find the length of the rectangle.

The area of a trapezium is 34m^2 and the length of one of the parallel sides is 10 cm and its height is 4 cm. Find the length of the other parallel side.

The altitude of the sun( the angle of depression) is 60°. If a vertical tower casts a shadow of length 30 m then find the height of the tower.

In a model of ship, the mast is 9 cm high, while the mast of the actual ship is 12 m high. If the length of the ship is 28m, how long is the model ship?

There are two poles on each on either bank of a river just opposite to each other.One pole is 60m high.From the top of this pole the angles of depression of the top and the foot of the other pole are 30° and 60° respectively. Find the width of the river and the height of the other pole.

A circus artist is climbing a 20 m long rope.which is tightly stretched and tied from the top of a vertical pole to the ground.Find the height of the pole,if the angle made by the rope with the ground level is 30^@ (see Fig 9.11)

A tree casts a shadow 4m long on the ground,when the angle of elevation of the sun is 45^@ .The height of the tree (in meters) is a)4 b)3 c)5.2 d)4.5

A resistance wire connected in the left gap of a metre bridge balances a 10Ω resistance in the right gap at a point which divides the bridge wire in the ratio 3:2. If the length of the resistance wire is 1.5m, then find the length of 1Ω of the resistance wire.