Answer:
1.) Radius: 11mm
Diameter: 22mm
Circumference: 69.115038379mm
2). Radius: 10cm
Diameter: 20cm
Circumference: 62.831853072cm
3.) Radius: 5m
Diameter: 10m
Circumference: 31.415926536m
4.) Radius: 8dm
Diameter: 16dm
Circumference: 50.265482457
5.) Radius: 25mm
Diameter: 50mm
Circumference: 157.07963268
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