Question

The area of one of the faces of a cube is 81 square cm. Volume of cube?

Answer 1

Answer:

729 cube cm is the volume of the cube.

Step-by-step explanation:

because ,area of square = side×side or side square.

81 square cm = side square

root 81 square cm = side (as square goes left hand

root 9cm×9cm = side side and becomes root)

9cm = side(one pair of nine comes out

and that is side)

now , volume of square = l×b×h (in case of square all side

are same)

= 9cm×9cm×9cm

= 729cm

hope this helps