If a cube with a diagonal of 34√3 cm is melted down to form a cuboid, what will be the height of the cuboid if its length is equal to the side length of the cube and its width is 17 cm?

Find the approximate volume and surface area of a sphere of radius 6 cm. (Use π = 227)

Ram has two spherical balls of radius 10.5 cm each and Meena has six spherical balls of radius 7 cm each. What is the total volume of the balls that Meena has?