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dragon(龙)
Author:
赵林
GeoGebra
New Resources
双心四边形
折扣
圓的基本性質
第八周作业3
多邊形的面積
Discover Resources
信賴區間
Number of solutions of two straight lines
兩圓及交弦
平移指令
compare angle by Mr LO WY
Discover Topics
Parallelogram
Similar Triangles
Similarity Transformation or Similarity
Polygons
Line Segment