Question

Rive made a cuboid of plasticine of dimension 12cm 8cm and 3cm how many minumum numbers of such cubiods will be needed to firm a cube
​

Answer 1

Correct Question :

• Ravi made a cuboid of plasticine of dimensions 12 cm, 8 cm, and 3 cm.

• How many minimum number of such cuboids will be needed to form a cube of side 12 cm?

Given :

• Dimension of cuboid = 12cm, 8cm, 3cm.

To find :

• Minimum number of cuboids needed!

Answer :

We know that,

• Volume of cube = (side) ³

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= (12)³

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 1728cm³

• Volume of cuboid = 12 × 8 × 3

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 288cm³

• No. Of cubes needed to form such cubes = volume of cube / volume of cuboid

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 1728 / 288

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 6

⟿ Hence, 6 cuboids will be needed to form a cube of 12cm.

Answer 2

Answer:

Answer in attachment.

Hope it will help you.