Question

find the volume of a cube one face of which has an area of 81 metre square​

Answer 1

Answer:

729 meter cube

Step-by-step explanation:

Let length of side of cube be s.

Area of one face of cube = s^2 = 81

s = √81 = 9

Volume of cube = s^3 = 9 × 9 × 9 = 729

Answer 2

Answer:

area of square =side×side

81=side^2

side=root 81

side=9 m

volume of cube = side^3

=9^3

=729 m^3

I hope it is useful for you.

Thanks