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1. |
If a vertex of a triangle is (1, 1) and the midpoints of two sides of the triangle through this vertex are (-1, 2) and (3, 2), then the centroid of the triangle is |
A. | \(\left( { - \frac{1}{3},\frac{7}{3}} \right)\) |
B. | \(\left( { - 1,\frac{7}{3}} \right)\) |
C. | \(\left( {\frac{1}{3},\frac{7}{3}} \right)\) |
D. | \(\left( {1,\frac{7}{3}} \right)\) |
Answer» E. | |