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三角形內角和180度
Author:
范欣茹
Topic:
Triangles
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
【案例】圆柱体内放置一个大球六个小球
拼砌四邊形
兩位數除以一位數（二）
三位數除以一位數（一）
Discover Resources
轉盤1
S4 math
找中點的坐標的副本
四面体棱锥外接球
纏繞畫2
Discover Topics
Planes
Vectors 2D (Two-Dimensional)
Distributions
Diagrams
Intersection