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6. Position vectors of two particles, A and B are
given:
A = 31 + 4j + 5k meters
B = -4i + 2j - 7k meters
Vector C is the position vector of particle C that
is the cross product of vectors A and B (C = A x
B). Together, particles A, B, and C become
vertices of a triangular plane in space. What is
the perimeter of the triangle that is formed by the
three particles?

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