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bogdanovich [222]
3 years ago
12

Help!!! I really dont know how to do this and I need some help.​

Mathematics
1 answer:
nalin [4]3 years ago
8 0

1. Radius = 4 cm

2. Diameter = 8 cm

4 x 2 = 8

3. Circumference = 25.12 cm

8 x 3.14 = 25.12

4. Area = 50.24 cm^2

3.14 x 4^2

3.14 x 16 = 50.24

5. Radius = 5 in

6. Diameter = 10 in

5 x 2 = 10

7. Circumference = 31.4 in

10 x 3.14 = 31.4

8. Area = 78.5 in^2

3.14 x 5^2

3.14 x 25 = 78.5

9. Radius = 8 mm

16/2 = 8

10. Diameter = 16 mm

11. Circumference = 50.24 mm

16 x 3.14 = 50.24

12. Area = 200.96 mm^2

3.14 x 8^2

3.14 x 64 = 200.96

13. Radius = 7.4 cm

14.8/2 = 7.4

14. Diameter = 14.8 cm

15. Circumference = 46.472 cm

14.8 x 3.14 = 46.472

16. Area = 178.1636 cm^2

3.14 x 7.4^2

3.14 x 56.74 = 178.1636

17. Area = 44 m^2

10 - 6 = 4

8 x 4 = 32

6 x 2 = 12

32 + 12 = 44

18. Area = 7.74 mm^2

6 x 6 = 36

6/2 = 3

3.14 x 3^2

3.14 x 9 = 28.26

36 - 28.26 = 7.74

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