Question

What is the surface area of the cube?



A.
729 mm2

B.
486 mm2

C.
324 mm2

D.
81 mm2

Answer 1

do u have a pic of the cube?

Answer 2

Maybe some clue as to the length of the edges?

Answer 3

there

Answer 4

what do u thinkit is

Answer 5

Surface area of a cube formula.

\(\huge\bf{A=6a^{2}}\)

Answer 6

Idk
Thats why im asking you

Answer 7

486

Answer 8

how did u find that?

Answer 9

Google

Answer 10

.-.

Answer 11

is it right

Answer 12

Plug in.

\(\huge\bf{6(9)^{2}}\) Simplify.

\(\huge\bf{6 \times 81}\)

\(\huge\bf\color{red}{486}\)

Its best to know the process so you don't have to use Google.

Answer 13

@riozta

It is more important that you know how to do it without google or getting the answer from us

a cube has 6 square faces

so if you know the area of 1 face then multiply that by 6 for the area of the cube.

The area of a square is a^2 if a is the side length

Answer 14

^^ sorry i was seeing what i did wrong