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UmmmHELP

  • 2 years ago

have a few questions in geometry and no this is not for a quiz but it is timed... The section is areas of triangles, parallelograms and trapezoids once I open the questions I have to finish it

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  1. shubhamsrg
    • 2 years ago
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    Really? Your course book might help you! ^_^

  2. UmmmHELP
    • 2 years ago
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    Dang never thought of that! to bad I dont have one!

  3. UmmmHELP
    • 2 years ago
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    I do cyber school? doesnt come with a book

  4. shubhamsrg
    • 2 years ago
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    MAke google your book.

  5. natnatwebb
    • 2 years ago
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    what cyber school.

  6. UmmmHELP
    • 2 years ago
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    one through my public school and @shubhamsrg that really doesnt work out to well

  7. natnatwebb
    • 2 years ago
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    Well what exactly do you need help with?

  8. UmmmHELP
    • 2 years ago
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    areas of triangles, parallelograms and trapezoids

  9. natnatwebb
    • 2 years ago
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    Thats a lot of material, they're all just formulas, you just need to google them. I dont understand what you're looking for?

  10. UmmmHELP
    • 2 years ago
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    No like yeah its just formulas but apparently i am doing them wrong and thats what i need help with

  11. natnatwebb
    • 2 years ago
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    Well lets start with triangles then. a triangle's formula is (b)(h)(1/2) do you understand that?

  12. UmmmHELP
    • 2 years ago
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    Well I can pull up the questions so that way you can see exactly what im talking about but like I said once i open it i have to finish it so if you think you can help I will

  13. natnatwebb
    • 2 years ago
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    I'm working on some of my own stuff so lets not do that.

  14. natnatwebb
    • 2 years ago
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    here, try and answer this one. |dw:1360570376617:dw|

  15. UmmmHELP
    • 2 years ago
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    thats not really what the questions are asking..I really just want to learn from the questions asked....no offense and I know that you put it up to teach it but honestly I have been sitting here for a few hours cause i need help with my question you know? i just keep re-posting this not bumping but totally re-posting it....

  16. natnatwebb
    • 2 years ago
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    Thats because its not a question, you're asking me to explain the whole entire world of finding areas. thats a lot of different situations. I need something more specific that your'e struggling with.

  17. UmmmHELP
    • 2 years ago
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    Not trying to sound rude trust me not the intention and I appreciate the help with the one you posted but I just want to get mine done cause im frustrated with them and no there as specific question but I cant give it to you without opening it and then I have to do it so if I do and you say oh idk that one and I cant answer it correctly obviously i get it wrong

  18. natnatwebb
    • 2 years ago
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    if its not a quiz then what does it matter? Its to learn it and understand it. I understand the situation yoou're in, trust me i've been there dozens of times, but i cant help if i don tknow whats wrong. So, you can open your work folder and I can try to help but I'm going to explain it to understand it, not to get it done quickly.

  19. UmmmHELP
    • 2 years ago
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    cause it still counts as a grade , thats why it matters and no I literally click a link and it takes you to the question and it gets submitted and so on and so on but I cant just go grab the question and exit and im not in a rush to finish it once its started I just want to start it I dont really care how long it takes in the process of completing it

  20. natnatwebb
    • 2 years ago
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    Well then lets go! :) I thought since it was timed it would be a bit of a race

  21. UmmmHELP
    • 2 years ago
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    oh no haha sorry I should of explained that better

  22. UmmmHELP
    • 2 years ago
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    Okay give me one sec to open

  23. UmmmHELP
    • 2 years ago
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    Find the area. a.238.5 dm2 b.257.5 dm2 c.157.5 dm2 d.315 dm2

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  24. UmmmHELP
    • 2 years ago
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    I may be totally wrong but would you add 8.5 to 26.9 then times that by 9?

  25. natnatwebb
    • 2 years ago
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    Okay well the formula to get the answer is H (sum of bases/2)

  26. UmmmHELP
    • 2 years ago
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    doe that mean i can or cant do what i posted ^^

  27. natnatwebb
    • 2 years ago
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    this is what the equation will look like

  28. UmmmHELP
    • 2 years ago
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    Oh so add them together then divide by 2

  29. natnatwebb
    • 2 years ago
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    \[9(\frac{ 8.5+26.9 }{ 2})\]

  30. natnatwebb
    • 2 years ago
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    yup.

  31. UmmmHELP
    • 2 years ago
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    so 157.5?

  32. natnatwebb
    • 2 years ago
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    if thats what the calculator says, then yes. I dont have a calc ready. once you understand and know the forumlas the equations are uaually easy.

  33. UmmmHELP
    • 2 years ago
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    Okay, is it okay if I post the next one here?

  34. natnatwebb
    • 2 years ago
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    sure.

  35. UmmmHELP
    • 2 years ago
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    okay one sec

  36. UmmmHELP
    • 2 years ago
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    Find the area. a.238.5 dm2 b.257.5 dm2 c.157.5 dm2 d.315 dm2

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  37. natnatwebb
    • 2 years ago
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    Okay its a triangle right?

  38. natnatwebb
    • 2 years ago
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    Whats the formula for the finding the area of a triangle?

  39. UmmmHELP
    • 2 years ago
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    yes and 1/2(bh)

  40. natnatwebb
    • 2 years ago
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    right so just plug in your numbers

  41. UmmmHELP
    • 2 years ago
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    so 9.49

  42. natnatwebb
    • 2 years ago
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    right, then you need to convert to decimeters

  43. UmmmHELP
    • 2 years ago
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    A trapezoid has an area of 80.75 sq. in., and its two bases are 7 and 12 inches long. Find the height of the trapezoid. a.8.5 in. b.7 in. c.8.75 in. d.9.2 in. what about this?

  44. natnatwebb
    • 2 years ago
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    Okay so we just use our area formula for it and rearange it. so if our formula was h(bases/2)=A and we dont know the h, we just plug all the other numbers in a solve like an albegra problem.

  45. UmmmHELP
    • 2 years ago
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    but it says 2 bases so which one do i use

  46. natnatwebb
    • 2 years ago
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    both. Remember you need to add your bases together.

  47. UmmmHELP
    • 2 years ago
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    okay so its 1/2 x 19 + ?

  48. natnatwebb
    • 2 years ago
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    yes, its (x)(1/2)(19)= 80.75 sq in

  49. UmmmHELP
    • 2 years ago
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    okay... ughh

  50. natnatwebb
    • 2 years ago
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    whats wrong?

  51. UmmmHELP
    • 2 years ago
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    i have no clue what to do

  52. natnatwebb
    • 2 years ago
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    :) okay well work it like an algebra problem, what needs to be by itself on one side of the equation?

  53. UmmmHELP
    • 2 years ago
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    okay, so do we work with the 19 first?

  54. natnatwebb
    • 2 years ago
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    |dw:1360572812562:dw| start by moving X to one side all by itself.

  55. UmmmHELP
    • 2 years ago
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    80.75/x?

  56. UmmmHELP
    • 2 years ago
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    @natnatwebb

  57. natnatwebb
    • 2 years ago
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    I'm doing the math. by hand okay? :) we have 9.5x=80.75 now tell me whats the next step?

  58. UmmmHELP
    • 2 years ago
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    okay! subtract 9.5 from 80.75

  59. natnatwebb
    • 2 years ago
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    nope! Try again

  60. natnatwebb
    • 2 years ago
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    Divide.

  61. UmmmHELP
    • 2 years ago
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    yeah thats what I meant haha my bad...blonde moment

  62. natnatwebb
    • 2 years ago
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    :) its okay.

  63. UmmmHELP
    • 2 years ago
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    okay so then its x=80.75/9.5

  64. natnatwebb
    • 2 years ago
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    yes.

  65. UmmmHELP
    • 2 years ago
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    and that 8.5

  66. natnatwebb
    • 2 years ago
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    bingo

  67. UmmmHELP
    • 2 years ago
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    For an arts and crafts project, a student cut a triangle out of a rectangular piece of paper. If the triangle has a base of 6 inches and a height of 8 inches, and the rectangle has a length of 11 inches and a width of 12 inches, what is the area of the leftover paper after the triangle is cut out? a.108 in2 b.150 in2 c.174 in2 d.24 in2 almost done

  68. natnatwebb
    • 2 years ago
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    okay well we have three equations here. The area of the rectangle, the area of the triangle and then the area of the triangle subtracted from the area of a rectangle. Understand?

  69. UmmmHELP
    • 2 years ago
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    ehh i think

  70. natnatwebb
    • 2 years ago
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    Okay! Go give it a whirl and lemme know how it goes :)

  71. UmmmHELP
    • 2 years ago
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    so i am going to come back to that one..can i post another?

  72. natnatwebb
    • 2 years ago
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    well lets work through it, are you stuck?

  73. UmmmHELP
    • 2 years ago
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    well if i can get the next few done i can take my time and work on it without having you wait

  74. natnatwebb
    • 2 years ago
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    Its okay, I'm doing my own homeowrk too so I'm not just sitting here twirling my thumbs do what you like.

  75. UmmmHELP
    • 2 years ago
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    okay we will go back to it... Find the area of the trapezoid with vertices at the given points. (0, 2), (3, 2), (5, 0), (–1, 0) a. 11 units2 b. 12 units2 c. 9 units2 d. 7 units2

  76. natnatwebb
    • 2 years ago
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    okay, the best way to do these is to actually graph them. Use a graphing calcuator or just do a quick sketch so you can see it. Then you just could your bases and plug in your equation

  77. UmmmHELP
    • 2 years ago
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    I dont have a graphing calculator on me right now or paper

  78. natnatwebb
    • 2 years ago
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    |dw:1360574877604:dw|

  79. UmmmHELP
    • 2 years ago
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    okay

  80. UmmmHELP
    • 2 years ago
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    okay, well the time for the questions ran out...i will have to give it another go later, thank you though for all the help

  81. natnatwebb
    • 2 years ago
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    You're welcome, just remember that you have all you need in your area forumlas, you just may need to rearrange them and solve for diffferent aspects of the formula :)

  82. UmmmHELP
    • 2 years ago
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    okay, thanks!

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