Circle tag · Community Cases

Curated works from the GeoGebra community

Circles, with chords, arcs, tangents, sectors and inscribed angles, are foundational in both construction and coordinate geometry.

In-and-Out Chord Diagram 1: Build a chord system via construction

@Zhangshuzhen 2020-04-11 08:24

Compass Directions and True Bearing Angle via Geometric Construction

@liwc 2020-03-26 17:03

Heron's Formula Proof Without Words: Geometric Construction with Incircle

@alexchik 2015-04-30 01:38

Geometric Proof of the Law of Sines via Circumcircle Construction

@sonom 2013-12-09 20:22

S2 Chapter11.2 Choosing Appropriate Trigonometric Ratios

@liwc 2020-04-19 13:30

Sine and Cosine Scale Ruler: Visualizing Trigonometric Functions via the Unit Ci

@dingyinjie 2019-05-08 04:39

Concave Square Optical Illusion

@Cassiel_Tong 2020-02-03 06:17

Redefining Trigonometric Functions via the Unit Circle

@lyclyc2002hk 2016-04-06 05:10

Seven-Piece Assembly: Geometric Construction and Similarity Transformation

@kumath 2021-01-24 03:48

Trapezoid Decomposition Proof of the Pythagorean Theorem

@kumath 2021-01-24 03:44

Trigonometric Function Evaluation

@Xiaoshudianaishuxue 2019-06-17 15:51

Trigonometric Function Lines Interactive Demo

@fengweiji2018 2019-11-20 12:47

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