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pls solve with step by step explanation very urgent do not post irrelevant answers if u i will report pls pls​

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243 cents Marier
Answer:

here is your answer hope it helps...

In ∆ PQS

<PQS +a + <QPS =180° (Angle sum property of∆)

=> 60°+a+55°=180°

=>115°+a =180°

=>a=65°

Also,

a+b= 180° ( linear pair)

=> 65°+b=180°

=> b = 115°

Now In ∆PSR

<PRS+b+c= 180° (Angle sum property of∆)

=> 40°+115°+ c= 180°

=> 155°+c =180°

=> c = 25°

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