Question

The area of one of the faces of a cube is 81cm2 . Find its volume. ​

Answer 1

Answer:

729cm³

Step-by-step explanation:

1 face area is 81cm2

you know that a face of a cube is a square

so you can state that area of square is 81cm2

now, x² (let x be side)=81

therefore x=9cm

now we know that length breadth and height of a cube is always same

therefore

volume =x³=9*9*9=729cm³

Hope you understand :)