Question: Let P = (0, 0, 0), Q = (1, 1, -1), R = (-1, -1, 1). Find the area of the triangle PQ R. area

Let P = (0, 0, 0), Q = (1, 1, -1), R = (-1, -1, 1). Find the area of the triangle PQ R. area = Let T = (-6, 3,3), U = (-3, 6,3), V = (-3, -3,9). Find the area of the triangle TUV. area =

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