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#15 4-2 例題9
Author:
宋允光
GeoGebra
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Triangle with 3 Right Angles
Reflection = 180° Rotation about a Line
z`]]
Untitled
Circle Passing Through 3 Points
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Properties: parallelogram
Transversal Angles
Sentient Test
Ortocentro
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Line Segment
Parametric Curves
Integers
Differential Calculus
Sequences and Series