Answer: (3, 6, 8).
- A (3, 6, 8)
- B (6, 12, 16)
- C (2, 4, 4)
- D (1, 2, 2)
Correct answer: A. (3, 6, 8)
Explanation: Average each coordinate: ((2+4)/2, (4+8)/2, (6+10)/2) = (3, 6, 8).
Concept context
Coordinate axes and planes in space, octants, distance between two points, and the section formula
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