Question

URGENTEEEEEEEEEEEEEEE

1-Qual o ponto médio entre os pontos A(5,3) e B(-3,7)?

a)(0.0)

b) (2, 10)

c) (1, 5)

d) (2, –5)

e) (4, –2)


2-Qual o baricentro do triângulo formado pelos vértices M (–3; –3), N (6; 1) e P (3; 2)?


a) (2, 2)

b) (0, 2)

c) (3, 0)

d) (2, 0)

e) (0, 3)

Answer 1

1)

$x_{m}=\dfrac{5+(-3)}{2}=1\\y_{m}=\dfrac{3+7}{2}=5$

$\boxed{\boxed{\mathsf{M(1,5)}}}$

2)

$x_{G}=\dfrac{x_{A}+x_{B}+x_{C}}{3}\\x_{G}=\dfrac{-3+6+3}{3}=2\\y_{G}=\dfrac{y_{A}+y_{B}+y_{C}}{3}\\y_{G}=\dfrac{-3+1+2}{3}=0$

$\boxed{\boxed{\mathsf{G(2,0)}}}$

letra d