What are coordinates of the point equidistant from the points (a, 0, 0

1.	What are coordinates of the point equidistant from the points (a, 0, 0), (0, a, 0), (0, 0, a) and (0, 0, 0)?
A.	\[\left( \frac{a}{3},\frac{a}{3},\frac{a}{3} \right)\]
B.	\[\left( \frac{a}{2},\frac{a}{2},\frac{a}{2} \right)\]
C.	\[(a,a,a)\]
D.	\[(2a,2a,2a)\]
Answer» C. \[(a,a,a)\]

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What are coordinates of the point equidistant from the points (a, 0, 0), (0, a, 0), (0, 0, a) and (0, 0, 0)?

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