Question

triangle PQR, PQ=PR, if angle P=70degree, what is the measures of angleQ and anlge R?​

Answer 1

Answer:

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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