If the length of the diagonal of a square is $${ 10\sqrt{2}}$$ cm, then what will be the area of the square?

In the given figure find out the area of circle?

A cuboidal block of 6 cm × 9 cm ×12 cm is cut into exact number of equal cubes. The least possible number of cubes will be:

A field roller, in the shape of a cylinder, has a diameter of 1 meter and length of $$ {1}{1\over4}$$ meter. If the speed at which the roller rolls is 14 revolutions per minute, then the maximum area ( in m²) that it can roll in 1 hour is:

A solid cube, whose diagonal is $$ 128 {\ sqrt {2}} \ cm $$, 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?

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

A right circular cylinder is formed by rolling a rectangular sheet of metal of length 44 cm and breath 20 cm along its length. The volume of cylinder is_

The ratio of the areas of two circles is 16: 25. What will be the ratio of their circumferences?