Math Chapter Wise The Line And General Equation Of Second Degree And Its Classification English MCQ TGT 2010 Q.In a triangle ABC, ∠ ∠ ∠B is 90°, BD is perpendicular to AC. If AD = a, CD = b, then AB2 is Aa (a+b) Bb(a+b) Cc (b–a) Dab Show answer Correct answer: a (a+b)