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GeoGebra
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Copy of Concave and Convex Lenses
Author:
Sandeep Bappoo
,
Tom Walsh
GeoGebra
Move the tip of the "Object" arrow to move the object. Move the point named " Focus' " to change the focal length. Move the point named " Focus' " to the right side of the lens to change to a concave lens.
New Resources
Isosceles Triangle: Quick Construction
Angles and Intersecting Lines: Quick Investigation
van Aubel's Theorem
Bottema's Theorem
Cross Product in 2D and 3D
Discover Resources
coordinate of a point Lesson No 1
The "Donkey Theorem", making an ASS of you
Adding Sin x + Cos x Functions Graphically
Circle, Ellipse, Hyperbola: General Formulas
the femur height thing
Discover Topics
LCM and GCD
Expected Value
Orthocenter
Addition
Fractal Geometry