The measures of the angles of a triangle areshown in the figure below. Solve for x.111o 42o xo

The Solution.
The sum of angles in a triangle is 180 degrees.
Hence,
[tex]x+42+111=180[/tex]Collecting the like terms, we get
[tex]x+153=180[/tex][tex]x=180-153[/tex][tex]x=27^o[/tex]Hence, the correct answer is 27 degrees.