If the difference between the circumference and diameter of a circle is 30 cm, then the radius of the circle must be

If the difference between the circumference and diameter of a circle i

1.	If the difference between the circumference and diameter of a circle is 30 cm, then the radius of the circle must be
A.	6 cm
B.
C.	7 cm
D.	5 cm
E.	8 cm
Answer» C. 7 cm

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If the difference between the circumference and diameter of a circle is 30 cm, then the radius of the circle must be

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