Anglesin atrianglemay or may not becongruent.1. Triangle STUTriangle STU is anisosceles triangle.So:This gives--- sum ofanglesin atriangleSubstituteSubtract 54 from both sidesSo:and2. Triangle LMNTriangle LMN is anisosceles triangle.So:This gives--- sum ofanglesin atriangleSubstituteSubtract 28 from both sidesSo:and3. Triangle EFG--- sum ofanglesin atriangleSubtract 46 from both sidesThetriangleis anisosceles triangleSo:and4. Triangle PQRThetriangleis anequilateral triangleSo:Question 5Thetriangleis anisosceles triangle.So:Collect like termsDivide both sides by 6Hence, thevalueof x is 4Question 6Thetriangleis anisosceles triangle.So:Collect like termsDivide both sides by 18Hence, thevalueof x is 7Question 7Thetriangleis anisosceles triangle.So:Collect like termsDivide both sides by 3Hence, thevalueof x is 16Question 8Thetriangleis anequilateral triangle.So:Subtract 8 from both sidesDivide both sides by 4Hence, thevalueof x is 13Read more abouttrianglesat:brainly.com/question/2773823...

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