Question

please answer this with clear explanation and steps!!!

Answer 1

the formula to calculate the position of the centroid is
$x1 + x2 + x3 \div 2$
now the equation will be
7+0+(-1)÷2
=3
$y1 + y2 + y3 \div 2$
now the equation will be
-2+1+4÷2
=3/2
the coordinate of centroid is (3,3/2)