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Geometry: Types of Angles 2 (幾何：角的種類 2)
Author:
chisunch1
Topic:
Geometry
GeoGebra
New Resources
異分母分數減法
柱體建築師
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
四邊形的特性
Discover Resources
垂心的動畫
切割正二十面體
工具：PlaneString
完全图
數織Nonogram
Discover Topics
Curve Sketching
Addition
Natural Numbers
Combinatorics
Mode