Question

What is the surface area of the cube?



A.
5832 cm2

B.
108 cm2

C.
1944 cm2

D.
324 cm2

Answer 1

@hartnn

Answer 2

@agent0smith

Answer 3

@mathmate

Answer 4

@zzr0ck3r

Answer 5

I don't have any guess :(

Answer 6

We should never guess in math! lol

The surface area of a cube of side c is given by
six times the surface area of one side, or
\(\Large S=6c^2\)
Here c=18 cm
use your calculator to work out S, the unit for area is \(cm^3\) for measurements in cm

Answer 7

ok, so I need to do 18 time 3?

Answer 8

I am not really sure what I need to do...

Answer 9

18 x 3 = 54, but it doesn't make sense lol XD

Answer 10

@mathmate are you there?

Answer 11

@mathmate?

Answer 12

PLZ HELP ME!!

Answer 13

ah, i see... it's 18 x 6, right?

Answer 14

Is it?

Answer 15

when we plug in c =18 in 6c^2,
we get
6*(18)^2
calculate this.

Answer 16

what does it mean ^??? I am sooo stupid sorry

Answer 17

Do you still need help?

Answer 18

@Kikuo
\(6(18^2)\) means \(6*18*18)\)
also correction for the units, for areas, the unit should be \(cm^2\) for measurements in cm.

Answer 19

@mathmate

You tagged me for some reason?

Answer 20

He tagged the wrong user XD

Answer 21

Yep, sorry! @kikuo!