I have the surface area of a cube(1014 cm2) and i need to know how to get the side lengths out of the surface area. can anyone help? need this for an exam review for tomorrow

Question

kinggeorge · Answer

We have the surface area, not the volume.

anonymous · Answer

want to go over the steps with me that would sure help a lot

kinggeorge · Answer

To find the side lengths, first notice that a square has 6 sides, and each has the same area. Thus, we first have to divide $1014/6=169\; \text{cm}^2$.That's the are of a single side of the cube.

anonymous · Answer

the surface area = 6 * the surface of a side
the surface of a side is side lenght^2

kinggeorge · Answer

Now we have the area of a side of a square, from there, we just have to take the square root $$\sqrt{169}=13 \text{ cm}$$So your side length should be exactly 13cm.

anonymous · Answer

thank you so much thats big help,!

kinggeorge · Answer

You're welcome.