The diagram shows the cross section of six identical marbles touching each other on a horizontal surface. If the volume of a marble is `(9pi)/2cm^3` calculate the length of `PQ`

The diagram shows the cross-section of eight identical iron balls touching each other on a horizontal surface. If the volume of a ball is (9pi)/(2)cm^(3) , then what should be the minimum length and depth of a box so that all the balls can be placed in it ?

The diagram shows the cross-section of eight identical iron balls touching each other on a horizontal surface. If the volume of a ball is (9pi)/(2)cm^(3) , then what should be the minimum length and depth of a box so that all the balls can be placed in it ?

Three identical metal balls each of radius r are placed touching each other on a horizontal surface such that an equilateral triangle is formed, when the center of three balls are joined. The center of mass of system is located at the

Three identical metal balls each of radius r are placed touching each other on a horizontal surface such that an equilateral triangle is formed, when the center of three balls are joined. The center of mass of system is located at the

Three identical metal balls, each of the radius r are placed touching each other on a horizontal surface such that an equilateral triangle is formed when centre of three balls are joined. Then where does their centre of mass?

Three identical balls each of radius 10 cm and mass 1 kg each are placed touching one another on a horizontal surface. Where is their centre of mass located?

The diagram shows a box in the shape of a triangular prism of height 12cm. The cross section is an equilateral triangle of side 8cm. Calculate the volume of the box.