Question

Please help

a. Find the surface area of the cube.
b. Find the volume of the cube.

Cube: http://i1255.photobucket.com/albums/hh639/zigzagoon20001/Question3Cube.jpg

Answer 1

What is the area of one surface of the cube?

Answer 2

I don't know.

Answer 3

think

Answer 4

I don't know how to do this.

Answer 5

how would you calculate suqare meters of your room?

Answer 6

I don't know, how would you do that?

Answer 7

you would multiply width by length, no?

Answer 8

Okay, and how do I figure out the width or the length? It only says "4x-5" underneath the cube.

Answer 9

right?

Answer 10

I don't know if that's right. If you say so. I don't know that much about this topic. So what would the width or length be in this situation?

Answer 11

to figure an area of a rectangular region, you multiply it's length by it's width

Answer 12

Well myko just told me how, but I do not know the width or length is of this rectangle.

Answer 13

so , imagine you have a square (length = width)

Answer 14

I'm sorry, this is all very confusing to me.

Answer 15

this is, actualy, one of the faces of the cube. To find total surface area, just count how many faces it has.

Answer 16

I'm assuming it has 6 faces, right?

Answer 17

you right, so total surface area will be 6 times the area of one of the faces

Answer 18

in your case:

Answer 19

got it?

Answer 20

Still confused?

Answer 21

The definition of area reads:

area: The area of a region is the number of square units it contains.

Answer 22

In this question you can not calculate a numerical answer
because you don't know what the value of x is.
You can only give the equations:

surface area = 6(4x-5)^2

volume = (4x-5)^3