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三年級
三年級
Author:
kokoyau
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Earth with coastline
長方體平面投影 (Codex版)
判斷球體
兩組對邊相等和有直角的四邊形
拼砌四邊形
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Is this a prism 7
生活中的平面圖形─點與線的性質
congruent (SSS)
橢圓軌跡 (4)的副本
任意角
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Similar Triangles
LCM and GCD
Linear Functions
Perimeter
Cuboid