Answer:
1. Radius = 5in
Diameter = 10in
> 2 x radius
Circumference = 31.4
> 2 x π x radius
2. Radius = 9ft
> diameter/2
Diameter = 18ft
Circumference= 56.52ft
> π x diameter
3. Radius = 25cm
Diameter = 12.5cm
Circumference = 78.5cm
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Answer:
1. Radius = 5in
Diameter = 10in
> 2 x radius
Circumference = 31.4
> 2 x π x radius
2. Radius = 9ft
> diameter/2
Diameter = 18ft
Circumference= 56.52ft
> π x diameter
3. Radius = 25cm
Diameter = 12.5cm
Circumference = 78.5cm
> 2 x π x radius