Question

Area of a solid box in the shape of a cube with side length 9cm

Answer 1

Answer is
Area = 729 cm^3
Surface area = 486 cm ^2

Step by step

A cube has all sides that are equal

Area = L x W x H

A = 9 x 9 x 9

A= 729 cubic cm

Surface area = 6 x S^2
This is LxW x 6 sides

Surface area = 81 x 6

Surface area = 486

Answer 2

486

Explanation:

area of a cube =6x²

length= 9

area=6×9²

=6×81

=486