What is the height of the cuboid, if the cube of diagonal 19√3 cm is melted and casted, the cuboid’s length is the same as the cube’s side and the breadth of the cuboid is 9.5 cm?

What is the height of the cuboid, if the cube of diagonal 19√3 cm is melted and casted, the cuboid’s length is the same as the cube’s side and the breadth of the cuboid is 9.5 cm? Correct Answer 38 cm

As we know,

Volume of cube = a3

Volume of cuboid = length × breadth × height

Diagonal of the cube = √3 a

⇒ √3a = 19√3

⇒ a = 19

Length of the cuboid = 19 cm

Let height of the cuboid be h cm

Width of the cuboid b = 9.5 cm

When any shape is casted to another shape then their volume remain same

⇒ 19 × 9.5 × h = 19 × 19 × 19

⇒ h = (19 × 19 × 19)/(19 × 9.5)

⇒ h = 38 cm

∴ Height of cuboid so formed by melting will be 38 cm

Related Questions

What is the ratio of the volume of a cuboid to the volume of a cube? Statement I. The ratio of the height, breadth, and length of the cuboid is 1 : 2 : 3 and the total surface area of the cuboid is 352 cm2. Statement II. The total surface area of the cube is given to be 384 cm2. Statement III. The length of the cuboid is 3 times the height of the cuboid and 1.5 times the breadth of the cuboid. The difference between the length and the height of the cuboid is 8 cm.