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 ->  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


   



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) About Me  (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.