Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

mrs.perkins

  • 3 years ago

If the radius of a circle is multiplied by 4, then how many times larger is the circumference of the new circle?

  • This Question is Closed
  1. Monkeyball
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    The circumference of a circle is given by \[2*\pi*r\]

  2. Monkeyball
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    and lets say we pick r=1 we get \[2*\pi\]

  3. Monkeyball
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    now lets say that we multiply the radius by 4 so now r=4

  4. Monkeyball
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[8*\pi\]

  5. Monkeyball
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    8 pi is 4 times bigger than 2 pi

  6. mrs.perkins
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so whats the answer

  7. Monkeyball
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Look at my last post

  8. mrs.perkins
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so what do i do next

  9. mrs.perkins
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so is 32

  10. Monkeyball
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait can you tell me what the original radius equals?

  11. mrs.perkins
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i really dont know

  12. Champs
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Answer is 4

  13. mrs.perkins
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    thanks

  14. 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