Question

A triangle has a vertex at (1, 2) and the mid points of the two sides through it are (-1, 1) and (2, 3). Then the centroid of this triangle is:

1. \(\left( {1,\;\frac{7}{3}} \right)\)
2. \(\left( {\frac{1}{3},{\rm{\;}}2} \right)\)
3. \(\left( {\frac{1}{3},{\rm{\;}}1} \right)\)
4. \(\left( {\frac{1}{3},{\rm{\;}}\frac{5}{3}} \right)\)

Answer 1

Correct option is 2) \(\left( {\frac{1}{3},{\rm{\;}}2} \right)\) 

Explanation::