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Opposite angles in a cyclic quadrilateral add up to 180 degr
Author:
williamgeorgeemeny
Topic:
Angles
GeoGebra
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Locus Related to Descartes' Folium
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Triangle with 3 Right Angles
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Utility
segments and triangles project
Rotace
day 101
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Multiplication
Similarity Transformation or Similarity
Addition
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Arithmetic Mean