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  1. a
  2. a
  3. a
    • a2  =   d2/2
    • a  =   P / 4
    • a2  =   A
  1. d
  2. d
  3. o
  4. d
    • d2  =   2·a2
    • d2  =   P2/8
    • d2  =   2· A
  1. P
  2. P
  3. P
    • P  =   4 ·a
    • P2  =   8· d2
    • P2  =   16· A
  1. A
  2. A
  3. A
    • A  =   a2
    • A  =  d2/2
    • A  =  P2/16
Square: Surface area, side, diameter, perimeter

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