Math, asked by Anonymous, 1 year ago

Application to trigonometry someone give me 5 questions for this don't give me website!!

archanaunni2003: 1.A person, standing on the bank of a river, observes that the angle subtended by a tree on the opposite bank is 60o. When he retreated 20m from the bank, he finds the angle to be 30o. Find the height of the tree and the breadth of the river.

archanaunni2003: 2.A tree is broken by the wind. The top struck the ground at an angle of 30o and at a distance of 30 meters from the roots. Find the whole height of the tree.

archanaunni2003: 3.The angles of elevation of the top of a tower from two points at distances p and q meters from the base and in the same straight line with it are complementary. Prove that the height of the tower is √pq

Anonymous: Thank u so much!!

archanaunni2003: 4.At a point on level ground, the angle of elevation of a vertical tower is found to be such that its tangent is 5/12 . On walking 192 meters towards the tower, the tangent of the angle of elevation is 3/4. Find the height of the tower.

archanaunni2003: 5.A man on the top of a vertical tower observes a car moving at a uniform speed coming directly towards it. If it takes 12 minutes for the angle of depression to change from 30o to 45o, how soon after this, will the car reach the tower? Give your answer to the nearest second.

archanaunni2003: ur Welcome..

Anonymous: Thank u so much!!!