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Mathematics
Mathematics
Problem
The points
P
(
2
,
−
1
,
4
)
P(2,-1,4)
P
(
2
,
−
1
,
4
)
and
Q
(
6
,
3
,
−
4
)
Q(6,3,-4)
Q
(
6
,
3
,
−
4
)
are the endpoints of a diameter of a sphere. Find the length of the radius of the sphere. a)
4
6
4\sqrt{6}
4
6
b)
2
2
2\sqrt{2}
2
2
c)
2
6
2\sqrt{6}
2
6
d)
6
6
6
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