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多邊形面積探究1
Author:
SIN MING WONG
GeoGebra
New Resources
美國國旗 (Codex 版)
算柱 (兩位數)
近似值：有效數字
sanjiaohanshu
兩組對邊相等的四邊形
Discover Resources
兩圓內外公切線
圓的軌跡
四年級
earth
製作一個面積是30平方厘米的梯形。
Discover Topics
Polygons
Logic
Reflection
Straight Lines
Right Triangles