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What is the measure of ∠S?

What is the measure of ∠S?-example-1
What is the measure of ∠S?-example-1
What is the measure of ∠S?-example-2
User Lebatsnok
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1 Answer

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∠S = 360° - ∠T - ∠Q - ∠R
∠T = 90°
∠Q = 128°
∠R = 57°
∠S = 360° - 90° - 128° - 57° = 85°
Answer: ∠S = 85°.
User Gonzalo Contento
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