{
  "icon" : "target",
  "id" : "F1AF377C-17A7-562C-B6CA-5AC2E8A0D203",
  "lines" : [
    {
      "id" : "9C551B33-FEEB-5D61-AA9D-78D209715414",
      "source" : "# One radius, two answers"
    },
    {
      "id" : "DC2DCA3F-8A42-51FB-AED4-E8040CB6A6B8",
      "source" : "r = 7 cm"
    },
    {
      "id" : "6F2289A1-C9E9-5869-89FB-9DFEDC91A141",
      "source" : "circumference = pi*2*r"
    },
    {
      "id" : "E2EFFE00-C705-5339-8F93-BEF9ABBB7629",
      "source" : "area = pi*r²"
    },
    {
      "id" : "35DC7F4C-888F-53BE-9358-E0A245CA5E09",
      "source" : ""
    },
    {
      "id" : "485F2137-2948-53C1-AA87-44549A6E65F9",
      "source" : "# Double the radius"
    },
    {
      "id" : "6F11B139-77CB-5A3F-8B0D-FFDEC43BD113",
      "source" : "double r = 2*r"
    },
    {
      "id" : "2C3F5961-FD90-5880-BFC2-10DF05BACE88",
      "source" : "double circumference = pi*2*double r"
    },
    {
      "id" : "21DF645E-DD17-5FAB-B693-525205B0F9C4",
      "source" : "double circumference == 2*circumference"
    },
    {
      "id" : "11A834EC-47B8-5408-BA86-631300A6C6DD",
      "source" : "double area = pi*double r²"
    },
    {
      "id" : "4153FEC5-DDE9-5C8A-BC71-C080B5EC4E5B",
      "source" : "double area == 4*area"
    }
  ],
  "numberStyle" : {
    "decimal" : ".",
    "grouping" : ",",
    "secondaryGroupSize" : 3
  },
  "title" : "Circles: π at work"
}