A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

HIII PLZ HELP ME

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

    Sure what do you need

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

    Find the area of the annulus in the concentric circles (one with radius 4cm and the other with radius 11cm) shown below. Leave answer in pi form|dw:1439499583770:dw|

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

    The formula for area of circle is, Area equals Pi times r times r

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

    Try to figure out each of those circles now

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

    true but what does annulus mean??

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

    In greek it means little ring, you must find areas of both of those radius

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

    so 16pi cm and 121pi cm?

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

    So Pi times 4^2 and Pi 11^2

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

    Yes correct

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

    yay! thanks

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

    Medal? :)

  12. 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.