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Ex 6.2, 1 - Find the value of the unknown exterior angle x in

 

 

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Ex 6.2, 1 (i) Find the value of the unknown exterior angle x in the following diagrams:In ∆ABC, ∠ACD = x ∠A = 50° ∠B = 70° We know that, Exterior angle is sum of interior opposite angles ∠ACD = ∠A + ∠B x = 50° + 70° x = 120°

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.