Concave and Convex Lenses

Author:Tom Walsh

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.

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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Classifying Triangles
Area of a Circle Illustrated
Regular Polygons and Equivalent Triangles
Sum of Squares: Proof without Words

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Irine's Dice 2D original
parabola
LZ 8.2.A5.1 Many Dilations of a Triangle
Kopie von Law of Cosines
Area Between Curves
Right Triangle

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Constructions
Boxplot
Rectangle
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Upper and Lower Sum or Riemann Sum