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a ️ PQR if PQ=PR and angle P=80° find angle Q
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Answer:
Given , PQ = QR
Thus, ∠QPR=∠PRQ=x (Isosceles triangle Property)
Sum of angles of triangle = 180
∠PQR+∠PRQ+∠QPR = 180
80+x+x=180
2x=100
x=50
∘
∠R=50
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