Questions in trigonometry

SelectQuestion
If the angle of elevation of the top of tower at a distance 500 m from its foot is 30°, then height of the tower is
For a man, the angle of elevation of the highest point of the temple situated east of him is 60°. On walking 240 metres to north, the angle of elevation is reduced to 30°, then the height of the temple is
20 metre high flag pole is fixed on a 80 metre high pillar, 50 metre away from it, on a point on the base of pillar the flag pole makes and angle $\alpha $, then the value of $\tan \alpha $, is
A tower subtends angles $\alpha ,\,2\alpha ,\,3\alpha $respectively at points A, B and $C$, all lying on a horizontal line through the foot of the tower. Then $AB/BC=$
Two pillars of equal height stand on either side of a roadway which is 60 metres wide. At a point in the roadway between the pillars, the elevation of the top of pillars are 60° and 30°. The height of the pillars is
A ladder rests against a wall making an angle $\alpha $with the horizontal. The foot of the ladder is pulled away from the wall through a distance x, so that it slides a distance y down the wall making an angle$\beta $with the horizontal. The correct relation is
The shadow of a tower is found to be 60 metre shorter when the sun’s altitude changes from ${{30}^{o}}$ to ${{60}^{o}}$. The height of the tower from the ground is approximately equal to
$ABCD$ is a rectangular field. A vertical lamp post of height 12m stands at the corner A. If the angle of elevation of its top from B is ${{60}^{o}}$ and from C is ${{45}^{o}}$, then the area of the field is

View Selected Questions (0)

Back to Categories

Back to Home