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Answer:
1. 75.36
2. 62.83
3. 7.85
4. 847.8
5. 3.77
6. 125.6
Step-by-step explanation:
1. C = 2πr = 2 x 3.14 x 12 = 75.36
2. C = 2πr = 2 x 3.14 x 10 = 62.83
3. r = 2.5/2 = 1.25
C = 2πr = 2 x 3.14 x 1.25 = 7.85
4. r = 270/2 = 135
C = 2πr = 2 x 3.14 x 135 = 847.8
5. C = 2πr = 2 x 3.14 x 0.6 = 3.77
6. C = 2πr = 2 x 3.14 x 20 = 125.6