question_answer

Find the coordinates of the centroid of the triangle with vertices A (a, 0), B(0, b) and C (1,1).

A)  (0, a)                    

B)         \[\left( \frac{a+1}{3},\frac{b+1}{3} \right)\]

C)  (b, 0)                   

D)         \[(\text{a}-\text{b},\text{a}+\text{b})\]