Question

O baricentro do triângulo de vértices A(1.4), B(4.12) e C(7,5) é:

a) G(4,3)
b) G(7,3)
c) G(3,4)
d) G(4,7)​

Answer 1

$\boxed{G = \frac{A +B+C}{3}}$

${Gx = \frac{Ax +Bx+Cx}{3} ~e~{Gy = \frac{Ay +By+Cy}{3}$

$\rightarrow {Gx = \frac{1 +4+7}{3}$

$\\\rightarrow {Gx = \frac{12}{3}$

$\rightarrow Gx = 4.$

$\rightarrow Gy = \frac{4+12+5}{3}$

$\rightarrow Gy = \frac{21}{3}$

$\rightarrow Gy = 7$

$G(Gx, Gy)$

$\boxed{ \boxed{ \boxed{G(4,7)} } }$

$Alternativa~correta~\rightarrow E$

$Att, Felipemlvr.$