Physics, 26.12.2021 02:40, ruddymorales1123

—>The area of a triangle whose vertices; A(1,-1, 2)m, B(2, 1, -1)m and C(3,-1,2)m
(1) 13m^2
(2) 8root13 m^2
(3) root13 m^2
(4) root26m^2

Answers: 2

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—>The area of a triangle whose vertices; A(1,-1, 2)m, B(2, 1, -1)m and C(3,-1,2)m
(1) 13m...