Question

FAN + MEDAAALLL!!!!!!!!

The surface area of a cube is 486 ft2.

What is the area of one face of this cube?

ft2

Answer 1

A cube has 6 faces right?

Answer 2

All of the faces are the same size, like on a pair of dice

Answer 3

Each face is a square with area Length x width

Answer 4

The total area of the entire cube is 6 of those squares

Surface Area Cube = 6 x Length x Width

Answer 5

A squares Length is the same as the Width, so you can write

Surface Area Cube = 6 x (Side Length)^2

Answer 6

486 = 6*(side Length)^2

81 = (Side Length )^2

Side Length = 9

One Side Area = 1 x (Side)^2

One Side Area = 9^2 = 81 ft^2

Answer 7

Or you could quickly solve:

Total SA = 486
One Side is 1/6 of the total surface area,

One side has area 486/6 = 81 ft^2

Answer 8

everything clear?

Answer 9

yep

Answer 10

was dis one answerd already?