Butterfly Theorem

Autor:jorj.kowszun

Let M be the midpoint of a chord PQ of a circle, through which two other chords AB and CD are drawn; AD cuts PQ at X and BC cuts PQ at Y. Prove that M is also the midpoint of XY

Nuevos recursos

Equation of Locus - Parabola
Locus Related to Descartes' Folium
Pitfalls of Disk/Washer Method
Reflection Across 2 Parallel Lines
Triangle with 3 Right Angles

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Aplicaciones
Zukei Level 3
Circle of Curveature
Circle Theorems
Rotation logo X

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Distribución normal
Paralelogramo
MCM y MCD
Traslación
Lógica