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角的大小與角兩臂的粗幼有關？
Author:
cwc
GeoGebra
New Resources
Radian Angles
SSS Similarity Theorem: Exploration
Points Visible from Origin
Ball Structure
Exploring Dilations
Discover Resources
Ty's Escalator Ride
Crescent
Large-Angle Stability - GZ~Theta Curve
Coreq CA Activity 1.5
Umbra
Discover Topics
Quadratic Equations
Arithmetic Operations
Correlation
Matrices
Ratios