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One step towards Regularity (Posted on 2019-03-05) Difficulty: 3 of 5
Let ABCD be a convex quadrilateral. Also let P, Q, R, S be the respective midpoints of sides AB, BC, CD, DA such that triangles AQR and CSP are both equilateral.

Find the largest angle of quadrilateral ABCD.

No Solution Yet Submitted by Danish Ahmed Khan    
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  Subject Author Date
Solution?armando2019-03-08 11:07:58
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