A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Circle A has a diameter of 8 inches, a circumference of 25.12 inches, and an area of 50.24 square inches. The diameter of circle B is 3 inches, the circumference is 9.42 inches, and the area is 7.065 square inches. Part A: Using the formula for circumference, solve for the value of pi for each circle. (4 points) Part B: Use the formula for area and solve for the value of pi for each circle. (4 points) Part C: What observation can you make about the value of pi for circles A and B? (2 points)

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @AlexandervonHumboldt2

  2. AlexandervonHumboldt2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ok so the formula for the curcimfence is 2*pi*r for the area is pi*r^2

  3. AlexandervonHumboldt2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    circle A: circumference: 25.12 inches. thus 2*4*pi=25.12 pi=3.14 area: pi*4^2=50.24 pi=50.24/16=3.14

  4. AlexandervonHumboldt2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    circle B: circumference: 2*1.5*pi=9.42 pi=9.42/3=3.14 area: 1.5^2*pi=7.065 pi=3.14

  5. AlexandervonHumboldt2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    The number Pi is always the same. In any circle, pi is equal to 22/7 which is approximately 3.14

  6. AlexandervonHumboldt2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    did you understood @geny55 ?

  7. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes @AlexandervonHumboldt2

  8. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @AlexandervonHumboldt2

  9. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so whats the answer for part A? @AlexandervonHumboldt2

  10. AlexandervonHumboldt2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    circle A: circumference: 25.12 inches. thus 2*4*pi=25.12 pi=3.14 circumference: 2*1.5*pi=9.42 pi=9.42/3=3.14

  11. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    does circle A mean Part A?

  12. AlexandervonHumboldt2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    part b: area: pi*4^2=50.24 pi=50.24/16=3.14 area: 1.5^2*pi=7.065 pi=3.14

  13. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait so part A is : circumference: 25.12 inches. thus 2*4*pi=25.12 pi=3.14 circumference: 2*1.5*pi=9.42 pi=9.42/3=3.14 @AlexandervonHumboldt2

  14. AlexandervonHumboldt2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yeah

  15. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok .. part c?

  16. AlexandervonHumboldt2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    The number Pi is always the same. In any circle, pi is equal to 22/7 which is approximately 3.14

  17. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok thanks :)

  18. AlexandervonHumboldt2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    np

  19. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    are all of these answers in your own words?

  20. AlexandervonHumboldt2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    of cousre!

  21. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.