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Archimedes Angle Theorem

Profile picture of Phil Todd

Phil Todd

@polymnia

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A is the circle center, and |AB| = |BD|.

What is the relationship between angle CAE and angle BDA?

You can drag B and C and watch it change.

Can you prove the relationship?

This is an example from Archimedes Book of Lemmas.

Tags: Archimedes, circle, angle
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