Mensuration

A parallelogram has one side 18 cm and its distance from the opposite side is 8 cm. The area of the parallelogram is

A rectangular box is 2 m long and 3.5 m wide. How many cubic metres of sand are needed to fill the box upto a depth of 12 cm ?

The breadth of a room is twice its height and half its length. The volume of the room is 512 m3. The length of the room is

The area of the base of a rectangular tank is 6500 cm2 and the volume of water contained in it is 2.6 m3. The depth of the water in the tank is

The volume of a wall 15 times as high as it is broad and 8 times as long as it is high, is 12.8 m3. The breadth of the wall is

Two cubes have their volume in the ratio 8 : 27. The ratio of their surface area is