Question

answer and explain in step by step ​

Answer 1

Answer:

∆PQR is an isosceles triangle

Let Q and R be x

angle P+angle Q+angle R=180°

30°+X+X=180°

30°+2x=180°

2x=180°-30°

2x=150°

x=150°/2

x=75°

So, angle R=75°

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Answer 2

Answer:

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Step-by-step explanation: