Two 6 cm diameter balls dipped in a 6 cm radius cylindrical vessel of water. Find the height of water in the vessel?

The area covered by a square is 308 square cm. The length of the diagonal of the square is.

A solid cube, whose diagonal is , is molded to form a cuboid. The length and width of the cuboid are 512 cm and 160 cm, respectively. What is the height of the cuboid?

A hollow iron pipe is 21 cm long and its exterior diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weights , then the weight of the pipe (π) is. 

The length of the diagonal of a square is 'a' cm. Which of the following represents the area of the square (in sq. cm)? 

The height of a square base right prism is 15 cm. If the total surface area of the prism is 608 cm² , then what will be the volume of prism?

The length of a hollow thick cylindrical metallic pipe is 6 cm and its total surface area including the surface at the ends is 98π sq. cm. If the outer diameter is 8 cm, then the inner diameter in cm is 

Find the area of a white sheet required to prepare a cone with a height of 21cm and the radius of 20cm.