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borishaifa [10]
3 years ago
14

Need URGENT help with #10-#14!!

Mathematics
1 answer:
Anna35 [415]3 years ago
3 0

Answer:

Step-by-step explanation:

Formula for circumference = 2πr

where r = radius

π = 3.14

10. Radius = 4in

Circumference = 2πr = 2 × 3.14 × 4

= 25.12in

11. Radius = 7 yard

Circumference = 2πr = 2 × 3.14 × 7

= 43.96 yard

12. Radius = 3.6 km

Circumference = 2πr = 2 × 3.14 × 3.6

= 22.608 km

13. Radius = 1.1mm

Circumference = 2πr = 2 × 3.14 × 1.1

= 6.908mm

14. Radius = 1/4mi

Circumference = 2πr = 2 × 3.14 × 0.25

= 1.57mi

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