- Geometry - GeoGebra
Interactive, free online geometry tool from GeoGebra: create triangles, circles, angles, transformations and much more!
- 李英 – Resources – GeoGebra
I majored in mathematics in university And I'm interested in IT and maths softwares, such as the Geometer's SketchPad, GeoGebra
- Mystery Quadrilaterals - GeoGebra
Dynamic Quadrilaterals found in Exploring Geometry with The Geometer’s Sketchpad (Bennet, 2004)
- Teorema de Pitágoras – GeoGebra
Exterior Angle Sum of Polygon (Geometer's Warehouse) Central Angle, Inscribed Angle, Circular Segment Angle and Arc
- Caseys theorem – GeoGebra
2020 is the bicentenary of the birth of the Irish geometer, John Casey (1820-1891) This applet illustrates Casey's theorem which tells us about the tangents to four non-intersecting circles that are each tangent to another circle Here we see four circles, blue, green, orange red (B, G, O R)
- Modern Geometry of the Triangle – GeoGebra
This GeoGebraBook is inspired by the work of the same name by the late Triangle Geometer Steve Sigur Cevians and the Cevian Triangle Collinearities and Concurrencies: Sides of Cevian Triangle
- Circles of Apollonius – GeoGebra
Everyone knows that a circle is the set of all points at a fixed distance from a given point, called its center But the Greek geometer Apollonius of Perga (ca 262 BC – ca 190 BC) discovered another way to define a circle
- Simple vs Non-simple - GeoGebra
New Resources Adding Decimal Numbers and Shortest Path Strategies; The 3D Space; Special Solid Trace; Intersections of y=a^x and y=log(a, x) רישום חופשי
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