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angle chasing in PQRS, PQ =QR = RS , <Q= 110^o, < R = 130^o .

Source: 2014 VWO Flanders MO p3

August 7, 2020
geometryequal segmentsanglesAngle Chasing

Problem Statement

Let PQRSPQRS be a quadrilateral with ∣PQ∣=∣QR∣=∣RS∣| P Q | = | QR | = | RS |, ∠Q=110o\angle Q= 110^o and ∠R=130o\angle R = 130^o . Determine ∠P\angle P and ∠S\angle S .
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