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angle chasing inside an equilateral, BD+DC=BC, BA=BE (Greece Junior 2009)

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July 14, 2019
Angle ChasingEquilateral

Problem Statement

From vertex AA of an equilateral triangle ABCABC, a ray AxAx intersects BCBC at point DD. Let EE be a point on AxAx such that BA=BEBA =BE. Calculate ∠AEC\angle AEC.
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