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賺賠：例1的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
賺賠
GeoGebra
New Resources
美國國旗 (Codex 版)
四邊形的特性
美國國旗 (Claude 版)
sanjiaohanshu
近似值：有效數字
Discover Resources
happy birthday
三角柱算體積
ikik
二階行列式-平行四邊形的面積
Pyramid with square base (angle between planes)
Discover Topics
Pyramid
Means
Fractions
Percentages
Sine