A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

gabbyalicorn

  • one year ago

What is the approximate perimeter of a semicircle with a radius of 9 mm? Use π ⁢ = 3.14. Express your final answer to the nearest hundredth.

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

    i think 28.26

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

    @geerky42 @Mehek14

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

    wait no now i think it is 56.52

  4. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    hold on let me do the math

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

    kk

  6. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    your first answer was correct

  7. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \(\dfrac{1}{2}*π *d\)

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

    ok, ty

  9. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    This is a tricky question. |dw:1433274279498:dw|

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

    but then mehek was wrong?

  11. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Do you include the diameter or not? It the figure is really a semicircle, then it is bound by a semicircle and a diameter. The perimeter really should be the length of the semicircle plus the diameter. In that case, the perimeter is 56.52 mm + 18 mm = 74.52 mm

  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.