Question 213862
Two angles of a triangle measure 15 degree and 85 degree what is the measure for the third angle


Step 1.  The sum of the angles in a triangle is equal to 180 degrees.


Step 2.  Let x by the unknown third angle.  Then


{{{x+15+85=180}}}


{{{x+100=180}}}


Step 3.  Subtract 100 from both sides of equation to get x


{{{x+100-100=180-100}}}


{{{x=80}}}  ANSWER


I hope the above steps were helpful.


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Good luck in your studies!


Respectfully,
Dr J