A person, standing on the bank of a river, observes that the angle subtended by a tree on the opposite bank is `60^0dot` When he retreates 20m from the bank, he finds the angle to be `30^0dot` Find the height of the tree and the breadth of the river.

A person standing on the bank of a river observers that the angle subtends by a tree on the opposite bank is 60^(@) . When he retires 40 feet from the bank, he finds the angle to be 30^(@) . Find the height of the tree and the breadth of the river.

A person standing on the bank of a river observes that the angle subtended by a tree on the opposite of bank is 60^(@) . When he retires 40 m.from the bank, he finds the angle to be 30^(@) . What is the breadth of the river ?

A person standing on the bank of a river observes that the angle of elevation of the top of a tree standing on the opposite bank is 60^0dot When he move 40 metres away from the bank, he finds the angle of elevation to be 30^0dot Find the height of the tree and the width of the river.

A man standing on the bank of a river observes that the angle of elevation of a tree on the opposite bank is 60^(@) . When he moves 50 m away from the bank, he finds the angle of elevation to be 30^(@) . Calculate : the height of the tree.

A man standing on the bank of a river observes that the angle of elevation of a tree on the opposite bank is 60^(@) . When he moves 50 m away from the bank, he finds the angle of elevation to be 30^(@) . Calculate : the width of the river and

A person standing on the bank of a river finds that the angle of elevation of the top of a tower on the opposite bank is 45^@ , then which of the following statements is correct ?

A T.V. Tower stands vertically on a bank of a river. From a point on the other bank directly opposite to the tower, the angle of elevation of the top of the tower is 60 degrees. From a point 20m away this point on the same bank, the angle of elevation of the top of the tower is 30o . Find the height of the tower and the width of the river.

A statue 8 meters high standing on the top of a tower 64 meters high, on the bank of a river, subtends at a point A on the opposite bank, directly facing the tower, the same angle as subtends at the same point A by man of height 2 meters standing at the base of the tower. Prove that the breadth of the river is 16sqrt(6) meters.

The angle of elevation of the top of a tower as observed from a point in a horizontal plane through the foot of the tower is 32^0dot When the observer moves towards the tower a distance of 100m, he finds the angle of elevation of the top to be 63^0dot Find the height of the tower and the distance of the first position from the tower. [Take tan32^0=06248a n dtan63^0=1. 9626]

A man standing on the deck of a ship, which is 10 m above water level, observes the angle of elevation of the top of a hill as 60^@ and the angle of depression the base of hill as 30^@ . Find the distance of the hill from the ship and the height of the hill.