SOLUTION: Is there a relation between side length and surface area of a cube linear or non linear? How do you know?

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Question 1157563: Is there a relation between side length and surface area of a cube linear or non linear? How do you know?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

Surface area of the cube consists of 6 squares.

If "a" is the edge length of the cube, then one such face has the area of a%5E2,

and the entire surface area of the cube is 6a%5E2.

It is the ANSWER to your question.

Each school class studies it.

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See this group of lessons on surface area of the major solids
    - Surface area of 3D solid bodies
in this site.

Also, in this site you have this free of charge online textbook on Geometry
    GEOMETRY - YOUR ONLINE TEXTBOOK.

On the surface area of a cone and other 3D solid bodies see the lessons in this online textbook under the topic
    Surface area of 3D solid bodies".