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LifeIsADangerousGame

  • 2 years ago

Could someone please help me with this Geometry? I need someone to check my answers and help me solve some questions. Thank you! ^_^

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  1. LifeIsADangerousGame
    • 2 years ago
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  2. LifeIsADangerousGame
    • 2 years ago
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    @jim_thompson5910 You really helped last time :D Would you mind helping me again if you're not busy?

  3. Mertsj
    • 2 years ago
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    Which ones do you need help with?

  4. LifeIsADangerousGame
    • 2 years ago
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    Sorry about that, I got kicked out :/ @Mertsj I need help with any one of the questions that don't have an answer highlighted in yellow. Any of the ones that do I need them to be checked. :)

  5. Mertsj
    • 2 years ago
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    So number 2. It is an isosceles triangle. Do you know what an isosceles triangle is?

  6. LifeIsADangerousGame
    • 2 years ago
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    Yes, a isosceles triangle is a triangle that has two equal sides and two equal angels.

  7. Mertsj
    • 2 years ago
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    That is very good. So what is the sum of all the angles of a triangle?

  8. LifeIsADangerousGame
    • 2 years ago
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    The sum of all the angles of a triangle is 180 degrees.

  9. Mertsj
    • 2 years ago
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    So why can't you get number 2?

  10. Mertsj
    • 2 years ago
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    Angle B is 35, angle C is 35 so you should be able to find angle A

  11. LifeIsADangerousGame
    • 2 years ago
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    Ohh, I'm sorry, I forgot to do that one, I do know how to do that one sorry! D:

  12. Mertsj
    • 2 years ago
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    So # 3. There is a theorem that says that the exterior angle of a triangle is equal to the sum of the two remote interior angles. Do you know what that means? Do you know what an exterior angle of a triangle is?

  13. Mertsj
    • 2 years ago
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    So do you need help or not?

  14. LifeIsADangerousGame
    • 2 years ago
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    I do I'm sorry, my computer keeps freezing.

  15. LifeIsADangerousGame
    • 2 years ago
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    I don't really understand that theorem. @Mertsj

  16. phi
    • 2 years ago
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    which question ?

  17. LifeIsADangerousGame
    • 2 years ago
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    I need all of the questions checked that have answers checked and then all of the questions that don't have yellow highlights I need help figuring out

  18. phi
    • 2 years ago
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    Your yellow answers (btw use blue next time, I could not read yellow) are correct for question 3, you should think "If I know 2 angles of the triangle, I can figure out the 3rd" use the idea that a straight line is 180ª to find that 2nd angle. Can you do that ?

  19. phi
    • 2 years ago
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    If that is too cryptic, I am saying that angle 4 plus angle 2 add up to 180 degrees

  20. phi
    • 2 years ago
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    for question 6 remember this: |dw:1362333669480:dw|

  21. LifeIsADangerousGame
    • 2 years ago
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    Sorry, I didn't get a notification For #3, is Angle 2 10?

  22. LifeIsADangerousGame
    • 2 years ago
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    Actually, it'd be 74. @phi

  23. LifeIsADangerousGame
    • 2 years ago
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    Which means Angle 1 is 106?

  24. phi
    • 2 years ago
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    for question 3, you know angle 3 (64) and you know angle 2 (74) angles 1,2 and 3 add to 180

  25. LifeIsADangerousGame
    • 2 years ago
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    Ohh okay, so Angle 1 is 42?

  26. phi
    • 2 years ago
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    yes

  27. phi
    • 2 years ago
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    question 7 is another "angles add upto 180 in a triangle)

  28. LifeIsADangerousGame
    • 2 years ago
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    I'm not sure how to solve that one :/

  29. phi
    • 2 years ago
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    Did you get 6 ? Vertical angles are =

  30. LifeIsADangerousGame
    • 2 years ago
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    are the angles opposite each other when two lines cross

  31. phi
    • 2 years ago
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    yes, so if you know angle 4 you know angle 2

  32. LifeIsADangerousGame
    • 2 years ago
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    Yes, but I can't seem to get the right answer for it. None of the answers would add up to 180

  33. phi
    • 2 years ago
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    what is angle 2 ? what is angle 3 ?

  34. LifeIsADangerousGame
    • 2 years ago
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    Angle 3 is 54, but I don't know what Angle 2 is, but it's the same as Angle 4

  35. phi
    • 2 years ago
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    Didn't you answer question 5 ?

  36. LifeIsADangerousGame
    • 2 years ago
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    Yes but is that the right answer?

  37. phi
    • 2 years ago
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    you can check: the 3 angles in the triangle add up to 180

  38. phi
    • 2 years ago
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    but up above I told you Your yellow answers (btw use blue next time, I could not read yellow) are correct

  39. LifeIsADangerousGame
    • 2 years ago
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    Okay yes, that answer is correct. So angle 4 is 64 degrees. Ohh, all my yellow answers are correct? Sorry I didn't understand that D: I'll do Blue next time, thanks. So if Angle 4 is 64 degrees then Angle 2 is 64 degrees. So if Angle 2 is 64 degrees and Angle 3 is 54, then Angle 1 is 62 degrees?

  40. phi
    • 2 years ago
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    yes. And that process of reasoning you went through is really what is important to learn. Geometry is just a way to set up problems that get you to think that way.

  41. LifeIsADangerousGame
    • 2 years ago
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    I'll do some of the practice questions they have for me after I'm done my assignments. :D

  42. LifeIsADangerousGame
    • 2 years ago
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    Could you help me with the questions on Page 5 and the last page?

  43. phi
    • 2 years ago
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    I just notice question 18 looks wrong.

  44. LifeIsADangerousGame
    • 2 years ago
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    Did I mix up Alternate Exterior Angles?

  45. phi
    • 2 years ago
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    angle 5 and angle 8 are vertical angles. The fancy names refer to angles on the 2 different parallel lines (if that makes sense)

  46. LifeIsADangerousGame
    • 2 years ago
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    So would Angle 1 be the correct answer?

  47. phi
    • 2 years ago
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    yes. alternate means "other side of the transversal" and exterior means outside the 2 parallel lines.

  48. LifeIsADangerousGame
    • 2 years ago
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    Ohh okay, I got mixed up because this is a different angle of the the diagram than I am used to :/

  49. phi
    • 2 years ago
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    for question 22 and 23, the idea is the angles on the "right side parallel line" are equal to their corresponding angles on the left side parallel line. so 6 matches (corresponds) with 2

  50. phi
    • 2 years ago
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    using corresponding angles and knowing vertical angles are equal, you can figure out everything (except the goofy names they give the different angle pairs)

  51. LifeIsADangerousGame
    • 2 years ago
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    Does that mean Angle 6 and 7 are 140?

  52. phi
    • 2 years ago
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    yes, 6 and 7 are vertical. I draw a narrow x to remind me, because the angles look = |dw:1362337901794:dw|

  53. LifeIsADangerousGame
    • 2 years ago
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    That's a good idea, I'll remembe that

  54. phi
    • 2 years ago
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    25 looks wrong.

  55. LifeIsADangerousGame
    • 2 years ago
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    Well 3x = 6 would be 3x/3 = 6/3 right?

  56. phi
    • 2 years ago
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    how do you get from 3x+5=11 to 3x = 6

  57. LifeIsADangerousGame
    • 2 years ago
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    Ohh you're right, that should be subtraction >.<

  58. phi
    • 2 years ago
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    they are asking how you get from the first statement to the middle statement I would subtract 5 ( or add -5 which makes their reasons a little goofy)

  59. LifeIsADangerousGame
    • 2 years ago
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    And then 26 would be E instead

  60. phi
    • 2 years ago
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    yes

  61. LifeIsADangerousGame
    • 2 years ago
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    It's kinda confusing because it seems like they skipped a step

  62. phi
    • 2 years ago
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    you mean for 3x+5=11 given 3x = 6 subtraction property x = 2 division what step is missing ?

  63. LifeIsADangerousGame
    • 2 years ago
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    The division property

  64. phi
    • 2 years ago
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    you could "show the work" 3x+5 = 11 3x +5-5 = 11-5 subtract -5 3x = 6 simplify 3x/3 = 6/3 divide by 3 x = 2 simplify

  65. LifeIsADangerousGame
    • 2 years ago
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    True, with these I think I'll do the problem that way I know what's missing

  66. phi
    • 2 years ago
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    for 27, it looks like addition property of angles. You can get that one by process of elimination.... it's the only reason that mentions angles.

  67. LifeIsADangerousGame
    • 2 years ago
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    For 28, I think it's C

  68. LifeIsADangerousGame
    • 2 years ago
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    No that's not right

  69. LifeIsADangerousGame
    • 2 years ago
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    Because 29 needs to be C

  70. phi
    • 2 years ago
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    you are looking for the reason for changing M<XYZ into 4n-6

  71. LifeIsADangerousGame
    • 2 years ago
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    I think 28 is Substitution

  72. phi
    • 2 years ago
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    another rule out all the add and subtract properties which do not fit. you are left with substitution, which makes sense. you are substituting 4n-6 for M<XYZ

  73. LifeIsADangerousGame
    • 2 years ago
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    So now we have Addition, Subtraction, and Division left. 29 would be Addition?

  74. phi
    • 2 years ago
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    how do you get from 4n-6=2n+46 to 2n -6= 46

  75. LifeIsADangerousGame
    • 2 years ago
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    ...it'd be subtraction wouldn't it? They subtracted 2n from 4n?

  76. phi
    • 2 years ago
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    If you have 2n's on the right side, you do you make it no n"s ?

  77. phi
    • 2 years ago
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    if you have 2 apples and you take away 2 apples , how many apples do you have left ?

  78. LifeIsADangerousGame
    • 2 years ago
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    No apples left

  79. phi
    • 2 years ago
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    and we call that ADD? SUBTRACT ? DIVIDE?

  80. LifeIsADangerousGame
    • 2 years ago
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    Subtracting

  81. phi
    • 2 years ago
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    yes they subtracted 2n from both sides on the right 2n - 2n is 0 on the left 4n - 2n is 2n (4 apples take away 2 apples leaves 2 apples... thinking apples instead of a letter n might make this seem more obvious)

  82. LifeIsADangerousGame
    • 2 years ago
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    Yea, I'll practice these more too

  83. phi
    • 2 years ago
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    almost done. question 30

  84. LifeIsADangerousGame
    • 2 years ago
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    Would that be C? Addition?

  85. phi
    • 2 years ago
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    yes they added +6 to both sides 2n-6=46 becomes 2n - 6+ 6 = 46+6 addition property 2n = 52 simplify

  86. LifeIsADangerousGame
    • 2 years ago
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    And then finally 31 is E :D

  87. phi
    • 2 years ago
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    yes, I think you got everything correct

  88. phi
    • 2 years ago
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    now your teacher will think you are a genius and make you teach everybody else.

  89. LifeIsADangerousGame
    • 2 years ago
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    XDDD She'll be asking the wrong person :b

  90. Mertsj
    • 2 years ago
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    But some of us will know who the REAL genius is.!

  91. LifeIsADangerousGame
    • 2 years ago
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    O.o well yea

  92. LifeIsADangerousGame
    • 2 years ago
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    Thanks again Phi, I appreciate it! One of these days I'll be good at math!

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