Question

1-Determine as coordenadas do baricentro do triângulo de vértice ABC.

a) A (-8,1/2) B (2,3) e C (4,-6)

Answer 1

Bx = xa+xb+xc ÷ 3
Bx = -8+2+4 ÷ 3 = -8+6 = -2/3

By = ya+yb+yc ÷ 3 
By = 1/2+3+(-6) ÷ 3 = 7/2 ÷ 3 = 7/6

B (-2/3, 7/6)

Espero ter lhe ajudado!