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凸透鏡 Convex Lens
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
alg2_05_05_01_applet_exp_2_flvs
Poorly Drawn Parallelograms 2
alg2_05_05_01_applet_exp_flvs
Blancmange curve (fractal)
Poorly Drawn Parallelograms
Discover Resources
Classifying Angle Measures
Line
tangent
hyperbola
Properties of Isosceles Triangles
Discover Topics
Limits
Cuboid
Plane Figures or Shapes
Quadrilaterals
Dilation