Question

Estimate the circumference of each circle with the given radius or diameter. Use 3 for for the letters (PLEASE HELP ANSWER ALL QUESTIONS PLEASEEEEEEEE)

Answer 1

Explanation:

• Circumference of a circle is: C = 2*π*r
• π = 3
• d = diameter
• r = radius (r = d/2)

14. d = 4 in.

r = 4/2 = 2 in.

C = 2*π*r

C = 2*3*2

C = 6*2

C = 12 in.

15. d = 8 cm

r = 8/2 = 4

C = 2*π*r

C = 2*3*4

C = 6*4

C = 24 cm

16. r = 6 m

C = 2*π*r

C = 2*3*6

C = 6*6

C = 36 m

17. r = 10 ft

C = 2*π*r

C = 2*3*10

C = 6*10

C = 60 ft

18. r = 3 in.

C = 2*π*r

C = 2*3*3

C = 6*3

C = 18 in.

19. d = 20 cm

r = 20/2 = 10 cm

C = 2*π*r

C = 2*3*10

C = 6*10

C = 60 cm

20. C = 128 ft ==> 130 ft

21. C = 36 ===> 40 ft

22. C = 200 m ==> 200 m

23. C = 85 in. ==> 90 in.

24. C = 57 cm ==> 60 cm

25. C = 132 in. ==> 130 in.

Hope this helps!