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vinnyya

  • 正十七邊形

    Activity

    vinnyya

  • 矩形與圓

    Activity

    vinnyya

  • 積分

    Activity

    vinnyya

  • 三次函數圖形

    Activity

    vinnyya

  • 拋物線與直線關係

    Activity

    vinnyya

  • 兩線段和圓3

    Activity

    vinnyya

  • 兩線段和圓的關係2

    Activity

    vinnyya

  • 兩線段和圓的關係

    Activity

    vinnyya

  • 等腰三角形外接圓上弦AB

    Activity

    vinnyya

  • 正方形所夾三角形面積相等

    Activity

    vinnyya

  • locus of a segment

    Activity

    vinnyya

  • 三角形三邊長

    Activity

    vinnyya

  • Origami-Trisect An Angle

    Activity

    vinnyya

  • Problem1:(md+me+mf)/(ad+be+cf)=a

    Activity

    vinnyya

  • 黃金矩形

    Activity

    vinnyya

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