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學習單：三角形任一外角與內角關係
Author:
Tsai, Dung Jung
,
Tim Brzezinski
GeoGebra
New Resources
兩位數除以一位數（一）
三位數除以一位數（一）
球體建築師
近似值：有效數字
【案例】2018年全国1卷理科12题
Discover Resources
GeoGebra作圖─ＲＨＳ全等
Euler Line 1
test
Sierpinski Triangle
正六邊形串珠
Discover Topics
Polynomial Functions
Polygons
Line Segment
Exponent
General Quadrilateral