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trigonometry
Author:
jarypig1983
GeoGebra
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算柱 (兩位數)
錐體建築師
【案例】2018年全国1卷理科12题
拼砌四邊形
兩組對邊相等和有直角的四邊形
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多邊形周界A
中國剪紙技術_蝴蝶花
星形工具(1060724)
周界-平移法(教學練習一)
F4_Ch9.1
Discover Topics
Polygons
Isosceles Triangles
Trigonometry
Numbers
Fractal Geometry