1) Radius: 11 inches, Diameter: 22 inches, Circumference: 69.08 inches, Area: 379.94 square inches
2) Radius: 3 ft, Diameter: 6 ft, Circumference: 18.84 ft, Area: 28.26 square ft
3) Radius: 19 yards, Diameter: 38 yards, Circumference: 119.32 yards, Area: 1133.54 square yards
4) Radius: 12 cm, Diameter: 24 cm, Circumference: 75.36 cm, Area: 452.16 square cm
5) Radius: 2 mm, Diameter: 4 mm, Circumference: 12.56 mm, Area: 12.56 square mm
6) Radius: 8 inches, Diameter: 16 inches, Circumference: 50.24 inches, Area: 200.96 square inches
7) Radius: 10 ft, Diameter: 20 ft, Circumference: 62.8 ft, Area: 314 square ft
8) Radius: 20 yards, Diameter: 40 yards, Circumference: 125.6 yards, Area: 1256 square yards
9) Radius: 5 cm, Diameter: 10 cm, Circumference: 31.4 cm, Area: 78.5 square cm
Parent Tip: Review the logic above to help your child master the concept of circles worksheet geometry.