1(ix)
The coordinates of the vertices of △ABC are respectively (-4, -2), (6, 2) and (4, 6). The centroid G of △ABC is :
- (a)(2, 2)
- (b)(2, 3)
- (c)(3, 3)
- (d)(0, -1)
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By formula,
Centroid of triangle = $\Big(\frac{x_1 + x_2 + x_3}{3}, \frac{y_1 + y_2 + y_3}{3}\Big)$
Centroid of triangle ABC (G)
$$\begin{aligned}= \Big(\frac{-4 + 6 + 4}{3}, \frac{-2 + 2 + 6}{3}\Big) \\[1em] = \Big(\frac{6}{3}, \frac{6}{3}\Big) \\[1em] = (2, 2).\end{aligned}$$
Hence, Option 1 is the correct option.