The line \[ax+by+c=0\] is a normal to the circle \[{{x}^{2}}+{{y}^{2}}={{r}^{2}}\]. The portion of the line \[ax+by+c=0\] intercepted by this circle is of length

The line \[ax+by+c=0\] is a normal to the circle \[{{x}^{2}}+{{y}^{2}}

1.	The line \[ax+by+c=0\] is a normal to the circle \[{{x}^{2}}+{{y}^{2}}={{r}^{2}}\]. The portion of the line \[ax+by+c=0\] intercepted by this circle is of length
A.	r
B.	\[{{r}^{2}}\]
C.	2r
D.	\[\sqrt{r}\]
Answer» D. \[\sqrt{r}\]

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The line \[ax+by+c=0\] is a normal to the circle \[{{x}^{2}}+{{y}^{2}}={{r}^{2}}\]. The portion of the line \[ax+by+c=0\] intercepted by this circle is of length

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