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第八周作业1
Author:
TuniyazAblikim
GeoGebra
New Resources
四邉形 (四年級) 教師版
第八周作业
兩組對邊相等和有直角的四邊形
美國國旗 (Codex 版)
拼砌四邊形
Discover Resources
欢度春节（灯笼）
tttttrr
两角差的正弦公式证明2
赋值保存法
翰林數學_2下_CH4-3_四邊形的種類
Discover Topics
Constructions
Triangles
Curve Sketching
Right Triangles
Bar Chart or Bar Graph