sendo A(1,-3); B(3,-5) e C(-7,17) os vertices de um triangulo, o baricentro é:?
a)G(-1,3)
b)G(-1,-2)
c)G(1,3)
d)G(-1,2)
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a)G(-1,3)
b)G(-1,-2)
c)G(1,3)
d)G(-1,2)
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Verified answer
a = 1 + 3 - 7 / 3 = - 3 / 3 = - 1
b = - 3 - 5 + 17 / 3 = 3
------------------------ > ( A )
baricentro
Gx = (Ax + Bx + Cx)/3 = (1 + 3 - 7)/3 = -1
Gy = (Ay + By + Cy)/3 = (-3 - 5 + 17)/3 = 3 (A)
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