The length of the radius of the circumference of a triangle having sid

1.	The length of the radius of the circumference of a triangle having sides 9 cm, 12 cm and 15 cm is
A.	6 cm
B.	7.5 cm
C.	4.5 cm
D.	8 cm
Answer» C. 4.5 cm

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The length of the radius of the circumference of a triangle having sides 9 cm, 12 cm and 15 cm is

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