
Mark M. answered 01/16/20
Tutor
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(278)
Mathematics Teacher - NCLB Highly Qualified
C1 = 2rπ
C2 = 2(r + 10)π
2(r + 10)π - 2rπ
2rπ + 20π - 2rπ
20π
Zane A.
asked 01/16/20The difference between the radii of 2 circles is 10cm Determine the difference between their circumferences.
Mark M. answered 01/16/20
Mathematics Teacher - NCLB Highly Qualified
C1 = 2rπ
C2 = 2(r + 10)π
2(r + 10)π - 2rπ
2rπ + 20π - 2rπ
20π
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