A ladder leans against a wall. Its foot is 3 metres away from
the wall and making an angle `35^circ` with ground. How high is
the other end of the ladder from the ground?
`(sin 35^circ=0.57, cos 35^circ=0.82, tan 35^circ=0.70)`

A ladder leans against a wall, with its foot 2 metres away from the wall and the angle with the floor is 40^circ . How high is the top end of the ladder from the ground?

The diagonal of a rectangle is12 cm and it makes an angle 35^@ With one side. Find the perimeter of the rectangle. [sin 35^@ = 0.57, cos 35^@ = 0.82]

A boy standing on the top of a tower 20 metrés height, saw the top of a building at an elevation of 50^circ and its base at a depression of 30^circ a) Draw a rough figure. according to the given data. b) find the distance between the tower and the building. c) find the distance from the top of the tower to the base of the building. d) find the height of the building. [sin 50^circ =0.77, cos 50^circ =0.64, tan 50^circ =1.2, 'sqrt3 =1.7]

A man 1.7 metres tall stands 10 metres away from the foot of a tree, and he sees the top of the tree at an angle of elevation 40^circ . How tall is the tree?

Find the distance of the line 4 x-doty=0 from the point P(4,1) measured along the line making an angle of 135^(circ) with the positive x - axis.

A ladder 5m long is leaning against a wall. The bottom of the ladder is pulled along the ground, away from the wall, at the rate of 2cm/s. How fast is its height on the decreasing when the foot of the ladder is 4m away from the wall.

A 2.6 metre long rod leans against a wall,its foot 1 metre from the wall.When the foot is moved a little away from the , wall, its upper end slides the same length down.How much farther is the foot moved? .

Two buildings of same height in a plane ground are 80 meters apart, A boy standing in between sees the top of the buildings at an elevation of 35^circ and 65^circ . a) Draw a rough figure. b) Find the distaince from each buildings to the boy. c) Find the height of büildings. '[sin 35=0.57, cos 35=0: 81, tan 35=0.70 , sin 65=0.90, cos 65 .=0.42, tan 65=2.14]'

Two children of same height standing on either sides of a tower, looks the top of tower at an elevation of 40^circ , 55^circ . The distance between the children is 25 metres. Height of the chlidren is 1.5 metres. a) Draw a rough figure showing the givën measurements. b) Calculate the height of the tower. [sin 40^circ =0.64, sin 55^circ =0.82, cos 40^circ =0.77, cos 55^circ =0 .57, tan 40^circ =0.89, tan 55^circ =1.43]