Math Chapter Wise The Line And General Equation Of Second Degree And Its Classification English MCQ DSSSB TGT (SECTION-B) 28 DEC 2014 Q.If the area of a triangle having vertices (2,7), (5,1) and (x,3) is 18sq. units then the value of x is– A10 B2 C–2 D–10 Show answer Correct answer: 10