In a \[\Delta ABC,\]let \[\angle C=\frac{\pi }{2}.\]If \[r\]and \[R\]are in radius and the circum-radius respectively of the triangle, then \[2(r+R)\] is equal to [IIT Screening 2000; AIEEE 2005]

In a \[\Delta ABC,\]let \[\angle C=\frac{\pi }{2}.\]If \[r\]and \[R\]a

1.	In a \[\Delta ABC,\]let \[\angle C=\frac{\pi }{2}.\]If \[r\]and \[R\]are in radius and the circum-radius respectively of the triangle, then \[2(r+R)\] is equal to [IIT Screening 2000; AIEEE 2005]
A.	\[a+b\]
B.	\[b+c\]
C.	\[c+a\]
D.	\[a+b+c\]
Answer» B. \[b+c\]

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In a \[\Delta ABC,\]let \[\angle C=\frac{\pi }{2}.\]If \[r\]and \[R\]are in radius and the circum-radius respectively of the triangle, then \[2(r+R)\] is equal to [IIT Screening 2000; AIEEE 2005]

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