Question

Find the centroid of the triangle ABC whose vertices are A (2,5) B ( -3,2) and C (7,_1)

Answer 1

a=(2,5)

b=(-3,2)

c=(7,-1)

centroid

$centroid =( \frac{x1 + x2 + x3}{3} )( \frac{y1 + y2 + y3}{3} )$

centroid=

$( \frac{2 + - 3 + 7}{3})( \frac{5 + 2 + - 1}{3} )$

=

$(\frac{6}{3} )( \frac{6}{3} )$

=(2,2)