Complete the table. Whiter your answers on your sheet of paper
1. 22m
Radius:
Circumference:
4.2. 5m
Radius:
Circumference:
3.20cm
Radius:
Circumference:
4.8dm
Radius:
Circumference:
5. 25mm
Radius:
Circumference:
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Answer:
1. 22m
Radius: 11 m
solution:
Circumference: 69.08 m
C = 69.08 m
2. 5m
Radius: 2.5 m
r = d/2
r = 5 m/ 2
r = 2.5 m
Circumference: 15.7 m
C = 3.14 × 5m
C = 15.7 m
3.20cm
Radius: 10 cm
r = d/2
r = 20 cm/ 2
r = 10 cm
Circumference: 62.8 cm
C = 3.14 × 20 cm
C = 62.8 cm
4.8dm
Radius: 4 dm
r = d/2
r = 8dm/2
r = 4 dm
Circumference: 25.12 dm
C = 3.14 × 8 dm
C = 25.12 dm
5. 25mm
Radius: 12.5 mm
r = d/2
r = 25 mm/2
r = 12.5 mm
Circumference: 78.5 mm
C = 3.14× 25 mm
C = 78.5 mm