# SOLUTION: Given: In triangle ABC, angle B=120 degrees Prove: angle A is not equal to 60 degrees Plan: use and indirect proof. use the paragraph method to write it.

Algebra ->  Algebra  -> Geometry-proofs -> SOLUTION: Given: In triangle ABC, angle B=120 degrees Prove: angle A is not equal to 60 degrees Plan: use and indirect proof. use the paragraph method to write it.      Log On

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 Geometry: Proofs in Geometry Solvers Lessons Answers archive Quiz In Depth

 Question 33739: Given: In triangle ABC, angle B=120 degrees Prove: angle A is not equal to 60 degrees Plan: use and indirect proof. use the paragraph method to write it.Answer by venugopalramana(3286)   (Show Source): You can put this solution on YOUR website!IN A TRIANGLE SUM OF 3 ANGLES IS 180.IF WE HAVE 2 ANGLES AS 120 & 60 WHICH ADDUP TO 180,THE THIRD ANGLE BECOMES ZERO.THAT IS WE WILL HAVE A LINE AND NOT A TRIANGLE.