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12 votes
12 votes
6. Annie has a cube that has a side length of 9 cm. What is the surface area of the cube?​

User Yenshirak
by
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1 Answer

25 votes
25 votes

Answer:

486

Explanation:

  • Surface area means the area of each side added up
  • In a cube, every side is the same
  1. the area of one side = 9 * 9 = 81, since it is a square (width*height) and width and height are the same.
  2. in a cube there are 6 sides
  3. so there are 6 sides with area 81
  4. 81 * 6 = 486
User Hans Kilian
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