In a triangle PQR if ∠QPR = 80° and PQ = PR, then ∠R and ∠Q are _________
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triangle ️ PQR
angle QPR =80 PQ=PR
angle R=? angle Q= ?
angle QPR = angle Q+ angle R+angle P
=angle Q+angle R+80
sum of all angle s in a triangle is 180
180=angle Q+angle R+80
180-100=80
angle Q+angleR =80
PQ=PR =50
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