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Euclid's Elements - Book III, Proposition 21
Author:
mtpberg
Topic:
Circle
Any two angles in the same segment (see Definition 8) are congruent.
GeoGebra
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Constructing the Copy of an Angle + Angles Activities
רישום חופשי
Tube at distance of a 3D curve.
Pendulum Snake
apec
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Motion of a Particle in 1-Dimension (second try)
Generalized Rolling Polygon
Triangle
funny face Sophie, GER
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Bar Chart or Bar Graph