If the sides of a triangle are in ratio 3 : 7 : 8, then R : r is equal

1.	If the sides of a triangle are in ratio 3 : 7 : 8, then R : r is equal to
A.	0.0881944444444445
B.	0.293055555555556
C.	0.129861111111111
D.	0.29375
Answer» C. 0.129861111111111

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If the sides of a triangle are in ratio 3 : 7 : 8, then R : r is equal to

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