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鐘面的時間（時和分）
Author:
Anthony OR 柯志明
GeoGebra
New Resources
Reflection = 180° Rotation about a Line
Equation of Locus - Parabola
Using Experimental Probability to Estimate π - Monte Carlo Method
Shells
Triangle with 3 Right Angles
Discover Resources
Euler's Formula
geomOrdr5
Perp Bisector
g-srt.a.2.2 mapping 3
Measuring Speed of a Wave
The tetraedre cut into 4 regular prisms
Discover Topics
Root
Hyperbola
Ellipse
Probability
Orthocenter