anonymous
  • anonymous
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
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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Callisto
  • Callisto
What is the area of one surface of the cube?
anonymous
  • anonymous
I don't know.
anonymous
  • anonymous
think

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anonymous
  • anonymous
I don't know how to do this.
anonymous
  • anonymous
how would you calculate suqare meters of your room?
anonymous
  • anonymous
I don't know, how would you do that?
anonymous
  • anonymous
you would multiply width by length, no?
anonymous
  • anonymous
Okay, and how do I figure out the width or the length? It only says "4x-5" underneath the cube.
anonymous
  • anonymous
|dw:1354440210511:dw| right?
anonymous
  • anonymous
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?
anonymous
  • anonymous
to figure an area of a rectangular region, you multiply it's length by it's width
anonymous
  • anonymous
Well myko just told me how, but I do not know the width or length is of this rectangle.
anonymous
  • anonymous
so , imagine you have a square (length = width) |dw:1354440386801:dw|
anonymous
  • anonymous
I'm sorry, this is all very confusing to me.
anonymous
  • anonymous
this is, actualy, one of the faces of the cube. To find total surface area, just count how many faces it has.
anonymous
  • anonymous
I'm assuming it has 6 faces, right?
anonymous
  • anonymous
you right, so total surface area will be 6 times the area of one of the faces
anonymous
  • anonymous
in your case: |dw:1354440579144:dw|
anonymous
  • anonymous
got it?
skullpatrol
  • skullpatrol
Still confused?
skullpatrol
  • skullpatrol
The definition of area reads: area: The area of a region is the number of square units it contains.
skullpatrol
  • skullpatrol
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

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