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max1409

  • one year ago

Gideon has prepared the following two-column proof below. He is given that ∠OLN ≅ ∠LNO and he is trying to prove that ΔOLE ≅ ΔONE.

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  1. max1409
    • one year ago
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    Step Statement Reason 1 ∠OLN ≅ ∠LNO Given 2 Draw OE as a perpendicular bisector to LN by Construction 3 m∠LEO = 90° Definition of a Perpendicular Bisector 4 m∠NEO = 90° Definition of a Perpendicular Bisector 5 LE ≅ EN Definition of a Perpendicular Bisector 6 OL ≅ ON CPCTC 7 ∠LEO ≅ ∠NEO Substitution Property of Equality 8 ΔOLE ≅ ΔONE Angle-Side-Angle (ASA) Postulate

  2. max1409
    • one year ago
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    Gideon made two errors in the proof. Identify and correct the errors.

  3. max1409
    • one year ago
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    @MasonP

  4. max1409
    • one year ago
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    @pooja195

  5. max1409
    • one year ago
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    @FlamePlaysMC

  6. anonymous
    • one year ago
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    oh im not sure but @paki might be able to help when he gets on

  7. max1409
    • one year ago
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    @paki please help

  8. max1409
    • one year ago
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    anyone

  9. max1409
    • one year ago
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    @pooja195 please help

  10. anonymous
    • one year ago
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    people probably still sleep or sum

  11. anonymous
    • one year ago
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    pooja just got online

  12. max1409
    • one year ago
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    anyone?

  13. max1409
    • one year ago
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    @pooja please help

  14. max1409
    • one year ago
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    @pooja195

  15. max1409
    • one year ago
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    @destinystaggs

  16. max1409
    • one year ago
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    i am so confused

  17. max1409
    • one year ago
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    do you get it

  18. pooja195
    • one year ago
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    I suck at geometry ;-;

  19. max1409
    • one year ago
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    @pooja195 do yo know anyone who can help me

  20. max1409
    • one year ago
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    ?

  21. anonymous
    • one year ago
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    well we know that these are angles and lines and there asking which is a right statement

  22. max1409
    • one year ago
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    they are asking for errors

  23. anonymous
    • one year ago
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    |dw:1438177982190:dw|

  24. max1409
    • one year ago
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    i am still confused

  25. anonymous
    • one year ago
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    this one is right so this one is not it

  26. max1409
    • one year ago
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    so how do i find the error

  27. anonymous
    • one year ago
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    idk im still trying to figure this out im sorry

  28. max1409
    • one year ago
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    ?

  29. random231
    • one year ago
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    you have to check step by step

  30. max1409
    • one year ago
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    k can you help me

  31. max1409
    • one year ago
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    @Smita12:

  32. random231
    • one year ago
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    yeah do u know what CPCT is?

  33. max1409
    • one year ago
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    no

  34. max1409
    • one year ago
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    CPCTC is an acronym for corresponding parts of congruent triangles are congruent. CPCTC is commonly used at or near the end of a proof which asks the student to show that two angles or two sides are congruent.

  35. random231
    • one year ago
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    its a property (Corresponding Pairs Of Congruent Triangles)

  36. random231
    • one year ago
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    yeah...

  37. max1409
    • one year ago
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    so what should i do

  38. random231
    • one year ago
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    so you must have noticed in step 6 it is mentioned:: OL ≅ ON CPCTC

  39. max1409
    • one year ago
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    no ol is not on cptc

  40. max1409
    • one year ago
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    so

  41. max1409
    • one year ago
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    so should i write OL ≅ ON in not cpctc

  42. random231
    • one year ago
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    how can that be true before it is proved that the triangles are congruent which has been proved in step8

  43. random231
    • one year ago
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    no its the property of isosceles triangle ie ∠OLN ≅ ∠LNO Given

  44. max1409
    • one year ago
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    so what should i write ?

  45. max1409
    • one year ago
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    i am really bad at geometry

  46. max1409
    • one year ago
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    ?

  47. random231
    • one year ago
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    you should write OL ≅ ON (opposite sides of an isosceles triangle)

  48. max1409
    • one year ago
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    whats the second error ?

  49. random231
    • one year ago
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    im trying to identify it. :P

  50. max1409
    • one year ago
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    k

  51. max1409
    • one year ago
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    did you find the second error

  52. random231
    • one year ago
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    im trying bro

  53. max1409
    • one year ago
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    k

  54. max1409
    • one year ago
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    this is so hard

  55. random231
    • one year ago
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    its not so hard and i dont think there is another error at all. every step seems perfect

  56. max1409
    • one year ago
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    did you find it?

  57. random231
    • one year ago
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    nahh im sorry!!

  58. max1409
    • one year ago
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    darn

  59. max1409
    • one year ago
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    i am so stuck lol i have been trying to figure this out for 1 hour

  60. max1409
    • one year ago
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    @satellite73

  61. max1409
    • one year ago
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    ?

  62. random231
    • one year ago
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    @satellite73 can you please help him?

  63. max1409
    • one year ago
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    @nogoodatgeometry @alexistheking777

  64. anonymous
    • one year ago
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    is there a picture for this proof?

  65. max1409
    • one year ago
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    no picture

  66. max1409
    • one year ago
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    just the two column proof

  67. anonymous
    • one year ago
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    Gideon has prepared the following two-column proof below. He is given that ∠OLN ≅ ∠LNO and he is trying to prove that ΔOLE ≅ ΔONE. Step Statement Reason 1 ∠OLN ≅ ∠LNO Given 2 Draw OE as a perpendicular bisector to LN by Construction 3 m∠LEO = 90° Definition of a Perpendicular Bisector 4 m∠NEO = 90° Definition of a Perpendicular Bisector 5 LE ≅ EN Definition of a Perpendicular Bisector 6 OL ≅ ON CPCTC 7 ∠LEO ≅ ∠NEO Substitution Property of Equality 8 ΔOLE ≅ ΔONE Angle-Side-Angle (ASA) Postulate

  68. max1409
    • one year ago
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    ?

  69. anonymous
    • one year ago
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    do you have an idea of what the incorrect ones are?

  70. max1409
    • one year ago
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    step 6 is incorrect

  71. max1409
    • one year ago
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    but i can't find the second one

  72. max1409
    • one year ago
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    ?

  73. anonymous
    • one year ago
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    hang on a second

  74. max1409
    • one year ago
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    k

  75. anonymous
    • one year ago
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    |dw:1438180391633:dw|

  76. anonymous
    • one year ago
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    here are your triangles

  77. max1409
    • one year ago
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    k

  78. anonymous
    • one year ago
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    now why is step 6 incorrect?

  79. max1409
    • one year ago
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    because OL ≅ ON is opposite sides of an isosceles triangle.

  80. max1409
    • one year ago
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    ?

  81. anonymous
    • one year ago
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    but they are still congruent

  82. max1409
    • one year ago
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    ohh ok

  83. max1409
    • one year ago
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    i am really confused now

  84. anonymous
    • one year ago
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    what does CPCTE mean?

  85. max1409
    • one year ago
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    corresponding parts congruent triangles

  86. anonymous
    • one year ago
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    yes. but the statement dosent say that they are equal, it says their congruent. you were right about 6 being wrong. but i wanted for you to know why

  87. max1409
    • one year ago
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    k

  88. anonymous
    • one year ago
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    for the statement to be true it should either be OL ≅ ON Reflexive property or OL = ON CPCTE

  89. max1409
    • one year ago
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    k

  90. anonymous
    • one year ago
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    so whats the second one and why?

  91. max1409
    • one year ago
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    i am not sure

  92. max1409
    • one year ago
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    can you help me find the second one

  93. anonymous
    • one year ago
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    yeah. look at all of the signs and wording

  94. max1409
    • one year ago
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    is the second error 5 LE ≅ EN Definition of a Perpendicular Bisector

  95. anonymous
    • one year ago
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    nope

  96. anonymous
    • one year ago
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    look at number 8. do you see anything wrong?

  97. max1409
    • one year ago
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    it does not look like an asa triangle

  98. anonymous
    • one year ago
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    what congruence postulate would fit here?

  99. anonymous
    • one year ago
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    how about SSS?

  100. max1409
    • one year ago
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    k

  101. max1409
    • one year ago
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    so how should i write my answer?

  102. anonymous
    • one year ago
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    no i was asking if SSS looked right

  103. anonymous
    • one year ago
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    does it?

  104. max1409
    • one year ago
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    yes

  105. max1409
    • one year ago
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    ?

  106. max1409
    • one year ago
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    ?

  107. anonymous
    • one year ago
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    8 OLE ≅ ΔONE SIde-Side-Side (SSS) Postulate

  108. max1409
    • one year ago
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    k so should i write statement 6 and 8 are wrong.

  109. max1409
    • one year ago
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    or do i have to explain?

  110. anonymous
    • one year ago
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    correct the error

  111. max1409
    • one year ago
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    can you help me write out the answer?

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