The radius of the circle in which the sphere \[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}+2z-2y-4z-19=0\] is cut by the plane \[x+2y+2z+7=0\]is

The radius of the circle in which the sphere \[{{x}^{2}}+{{y}^{2}}+{{z

1.	The radius of the circle in which the sphere \[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}+2z-2y-4z-19=0\] is cut by the plane \[x+2y+2z+7=0\]is
A.	2
B.	3
C.	4
D.	1
Answer» C. 4

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The radius of the circle in which the sphere \[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}+2z-2y-4z-19=0\] is cut by the plane \[x+2y+2z+7=0\]is

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