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ch14 p.30#31
Author:
Ms HCF
GeoGebra
New Resources
拼砌四邊形
第八周作业
四邊形的特性
AI 訓練教室
近似值：有效數字
Discover Resources
Quiz on Scientific Notation 科學記數法：測驗
GeoGebra使用指南
perimeter
七巧板
中位线的副本
Discover Topics
Confidence Interval
Angles
Circle
Parametric Curves
Isosceles Triangles