MathematicsMedium128×since 2002Q5527If a vertex of a triangle is (1,1)(1, 1)(1,1) and the mid points of two sides through this vertex are (−1,2)(-1, 2)(−1,2) and (3,2)(3, 2)(3,2) then the centroid of the triangle is :A(−1,73)\left( { - 1,{7 \over 3}} \right)(−1,37)B(−13,73)\left( {{{ - 1} \over 3},{7 \over 3}} \right)(3−1,37)C(1,73)\left( { 1,{7 \over 3}} \right)(1,37)D(13,73)\left( {{{ 1} \over 3},{7 \over 3}} \right)(31,37)Check answerSkip