If the plane P touches the sphere x2 + y2 + z2 = r2, then what is r eq

1.	If the plane P touches the sphere x2 + y2 + z2 = r2, then what is r equal to?
A.	\(\frac{2}{{\sqrt {29} }}\)
B.	\(\frac{4}{{\sqrt {29} }}\)
C.	\(\frac{5}{{\sqrt {29} }}\)
D.	1
Answer» D. 1

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If the plane P touches the sphere x2 + y2 + z2 = r2, then what is r equal to?

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