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Crossed Ladders Theorem
Let AB and EF be parallel. Let D be the intersection of BE and AF. Let the parallel to AB through D intersect AE at C. Then
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Contributed by:
Jay Warendorff
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Crossed Ladders Theorem
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Parallel
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"
Crossed Ladders Theorem
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http://demonstrations.wolfram.com/CrossedLaddersTheorem/
Contributed by:
Jay Warendorff
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