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分数的乘法
Author:
KL HUI
Topic:
Fractions
GeoGebra
New Resources
圓周公式的應用
直線的斜率：水平變化 & 鉛垂變化
撒针估算面积实验
多邊形的面積
常见四边形是否是双心四边形
Discover Resources
S3 Coordinate Geometry
截平面
圈圈移動
百分數：折扣 / 賺賠
第六次:20190412
Discover Topics
Centroid or Barycenter
Isosceles Triangles
Translation
Solids or 3D Shapes
Vectors 3D (Three-Dimensional)