the radius of the base of circular house is 14m.find the circumferenceof the house.

The radius of the base of a right circular cone is 12 m. If the slant height of the cone is 15 m, find the height of the cone.

The radius of the base of a right circular cone is 12 m. If the slant height of the cone is 15 m, find the height of the cone.

Find the area of a circular plate of radius 1.4 m.

The ratio of the costs of two houses is 4 :3 and the cost of the second house is 4,20,000 rupees. Find the cost of the first house. If the cost of the first house was 70,000 rupees more, then find the ratio of their costs.

At one side of a road, there os a house and on the other side there is a tower. House and tower are on the same horizontal plane. The angle of depression of the top and foot of the house, from the top of the tower are 30^(@)" and "45^(@) respectively. If the height of the house is 10 m, then find the distance between the house and the tower.

A man is standing on the deck of a ship which is 25m above water level. He observes the angles of elevation of the top of a lighthouse as 60° and the angle of depression of the base of light house as 45°.Calculate the height of the light house.