Math..
The circumference (C)C of a circle is 1818 centimeters. Which formula can you use to find the radius (r)r if you know that C=2πrC=2πr?
A. r=C2πr=C2π
B. r=2Cπr=2Cπ
C. r=πC2r=πC2
D. r=2πC
The circumference (C)C of a circle is 1818 centimeters. Which formula can you use to find the radius (r)r if you know that C=2πrC=2πr?
A. r=C2πr=C2π
B. r=2Cπr=2Cπ
C. r=πC2r=πC2
D. r=2πC