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七巧板（tangram）
Author:
孟宝兴
拖动每个形状，用对应的点选择对象。
GeoGebra
GGB学习交流群：217440999 作者：云南师范大学 孟宝兴 QQ：297770550 邮箱：mengbaoxing@163.com
New Resources
兩組對邊相等和有直角的四邊形
近似值：有效數字
四邉形 (四年級) 教師版
判斷球體
AI 訓練教室
Discover Resources
Fractal Spirograph (Fractal Roulette)
圈柱
Locus: Equidistance From Two Intersecting Lines
S3 Area and Volume
area
差的积分
Discover Topics
Vectors 3D (Three-Dimensional)
Volume
Trigonometric Functions
Hypergeometric Distribution
Pyramid