A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

kenialove

  • one year ago

What is the area of the figure below ? Use 3.14 for pi. Round to the nearest tenth. Figure is a rectangle with a semicircle (length of 3m and width of 8m) A. 24.0 m^3 B. 27.5 m^3 C. 31.1 m^3 D. 38.1 m^3

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

    Where is the figure?

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

    I'm on an iPad so I couldn't make it or something , but the figure is a rectangle with a semicircle With a length of 3m and a width of 8m @joyraheb

  3. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    like this @kenialove ? |dw:1441151363661:dw|

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

    Yes but to the side and the rectangle part is a little bit longer than that @jim_thompson5910

  5. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I see. Where do the numbers go?

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

    The length of the side of the rectangle is 3m , and the width of the bottom of the rectangle is 8m

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

    @jim_thompson5910

  8. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so this? |dw:1441152032975:dw|

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

    Yes

  10. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    what is the area of just the rectangle?

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

    Would it be 24 ?

  12. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes

  13. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    how about the semi-circle?

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

    I'm not sure but.. would the radius of it be 1.5 because half of 3 is 1.5 ?

  15. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1441152263622:dw| agreed?

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

    Wait the numbers are on the wrong sides .. It's actually the other way around

  17. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    oh, like this? |dw:1441152365374:dw|

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

    Yes

  19. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ok, so yeah, the radius is 1.5

  20. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    what is the area of a circle with radius 1.5 ?

  21. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    `Use 3.14 for pi`

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

    I got 7.065 is that right ? I did : A = pi r^2 A = 3.14 x 2.25 A = 7.065

  23. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    good

  24. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    now cut that in half because we only have half of the circle

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

    7.065 / 2 = 3.5325

  26. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    area of rectangle = 24 area of semi-circle = 3.5325 add them up to get the area of the entire figure

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

    Is that right ?

  28. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yeah you have the correct semi-circle area. Now add up the two areas to get your answer

  29. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    area of rectangle = 24 area of semi-circle = 3.5325 add them up to get the area of the entire figure

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

    27.5325

  31. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    then round that to the nearest tenth

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

    So the answer would be B. 27.5 right

  33. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yep

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

    Thanks so much !

  35. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    you're welcome

  36. 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.