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vector addition and subtraction
Author:
sealion1215
GeoGebra
New Resources
龙形曲线-分形龙
百分數及其應用
直線的斜率：水平變化 & 鉛垂變化
常见四边形是否是双心四边形
比較五件物件的重量
Discover Resources
Bearings 方位
各級曾參與義工活動的人數
三角形
等距共軛點(isotomic conjugate point)
三角形面積
Discover Topics
Distributions
Vectors 2D (Two-Dimensional)
Fractions
Isosceles Triangles
Solids or 3D Shapes