A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Help On Three Question Please!!!!!! Will Medal And Fan!

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

    @phi

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

    I would plot the points, and connect the dots as a first step

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

    ok like this?

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

    in a parallelogram, the opposite sides are equal. It is easy to find the length of the top and bottom sides (you count) what do you get for the length of the top side?

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

    6? on the top side.

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

    yes, and 6 for the bottom also for the "sides" you need to use the distance formula do you know it?

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

    Yes I Do

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

    can you find the distance between (2,-2) and (5,3) ?

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

    \[\sqrt{9+25}\]

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

    yes, so \( \sqrt{34}\)

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

    yes now what?

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

    that is also the lenght of the other side perimeter is the sum of the 4 lengths \[ 6 + \sqrt{34}+ 6 + \sqrt{34}\]

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

    you can combine "like terms" to make that a bit nicer

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

    Wait so you add them?

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

    yes, add the lengths. that is the definition of perimeter: total distance "around" the figure

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

    \[12+\sqrt{68} \]

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

    It is Greek: peri around, meter = measure or length

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

    sqrt(a) + sqrt(a) is not the same as sqrt(2*a) all you can do is say: I have one sqr(34) plus another sqr(34). How many sqr(34)'s do I have ?

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

    2 sqrt(34) ?

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

    yes so \[ 12 + 2\sqrt{34} \] is the answer they want

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

    ok so same on this one right?

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

    same idea, except opposite sides need not be equal , so it's more work First plot the points to see "what is what"

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

    So this?

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

    yes. you can use the distance formula for all 4 sides, but for 3 of them, you can just count

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

    So Top Side = 3 Bottom Side = 9 Right Side = 5

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

    now the last side, you use the distance formula

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

    \[\sqrt{36+25}\]

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

    what do you get for the perimeter?

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

    \[\sqrt{61}\]

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

    that is the length of the 4th side. the perimeter is the sum of the 4 sides.

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

    I assume you mean 17+sqr(61)

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

    yes

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

    so it is \[17+\sqrt{61}\]

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

    yes

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

    is that it?

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

    yes, that is the perimeter of the figure, in "exact" form (we could change the sqr(61) to a decimal, but it would only be approximate)

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

    This Last One

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

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

    Top And Bottom are 7

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

    yes, you can do these problems

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

    \[\sqrt{25+64}\]

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

    \[\sqrt{89} \] for both sides right and left

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

    \[14+2\sqrt{89}\]

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

    looks good

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

    @phi you taught me how to do this!

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

    Thanks!

  47. 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.