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Sagot :
Answer:
55
Step-by-step explanation:
in triangle PQR,
PQ=PR. Therefore PQR is an isosceles triangle.
therefore, angle Q= angle R(because angles opposite to equal sides of an isosceles triangle are equal)
angle P +angle Q + angle R= 180°(angle sum property)
2*angle Q + angle P = 180°(angle Q= angle R)
2*angle Q=180°-70°
angle Q= 110°/2
angle Q=55°=angle R
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