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Author:
s2218
Topic:
Ratios
自行操作
GeoGebra
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異分母分數減法
拼砌四邊形
兩組對邊相等的四邊形
直角坐標平面上的旋轉變換
【案例】圆柱体内放置一个大球六个小球
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根據百分率找數量（二）: 例3
mathmathmath
角平分線分點比例
貝式曲線 (Bezier Curve)
S0G5平均不等式（无字证明）
Discover Topics
Rhombus
Fractions
Reflection
Similarity Transformation or Similarity
Trigonometry