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梯形
Author:
Chan Ting Hin
Topic:
Trapezoid
GeoGebra
New Resources
找出對稱軸
【案例】2018年全国1卷理科12题
球體建築師
四邊形的特性
三位數除以一位數（一）
Discover Resources
極線對偶定理 / polar duality theorem
圖I
基础知识
雙曲線3--等軸法
序列（圆内弦）
Discover Topics
Real Numbers
Ratios
Quadratic Functions
Scalene Triangles
Multiplication