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平面鏡成像 Plane Mirror
Author:
Alex CHIK
Drag the grey/ red points to change positions of the object. Drag the black point to change source of light.
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
Piano. Keyboard.
Cross Product in 2D and 3D
Rotating Points (Optical Illusion)
Play C3 E3 G3 C4_C4
Isosceles Triangle: Quick Construction
Discover Resources
Systems of Inequalities
CATz with US Final Fit
Rotations About the Origin, Positive and Negative Angles
nonsquare rectangle
LZ 7.5.7.4 Differences and Distances
Discover Topics
Scatter Plot
Statistical Characteristics
Pyramid
Addition
Continuity