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DIY Pericentric Lens from a Fresnel and an entocentric lens
Author:
optowiki.info (Michael Schaefer)
New Resources
Dark Side of the Moon (kyrGs)
Free Fall & Projectile 2 (kyrGs)
Amanda
Cross Section Rectangular Prism
Projectile at an angle (kyrGs)
Discover Resources
GeoGebra Algebra Quickstart
Circumcenter of a triangle with circumcircle
y10 trig function transformation
Constructing Parallelogram
Similar Figures and Scale Factor
Discover Topics
Confidence Interval
Similar Triangles
Probability
Quadratic Equations
Power Functions