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1 3 3

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  1. Top | #1

    Nov 2011
    1063
    0.26
    1,152
    Thanked: 500

    45

  2. Top | #2

    Feb 2015
    20225
    0.11
    380
    Thanked: 246

    : geometric constructions

    45

    1) l
    2) o l.
    l o.
    3) oa.
    4) aob (90)*1/2=45

    ; 02-22-2016 01:15 AM

  3. Top | #3

    Feb 2015
    20225
    0.11
    380
    Thanked: 246

    :


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