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J.L. Group Title

PLEASE HELP! Look at the quadrilateral shown below. Clara writes the following proof for the theorem, “If the diagonals of a quadrilateral bisect each other, the quadrilateral is a parallelogram.”

  • 2 years ago
  • 2 years ago

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  1. J.L. Group Title
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    Clara’s proof 1. For triangles AOB and DOC, angle 1 is equal to angle 2 as they are vertical angles. 2. AO = OC and BO = OD because it is given that diagonals bisect each other. 3. The triangles AOB and DOC are congruent by SAS postulate. 4. Similarly, triangles AOD and BOC are congruent. 5. By transitive property, angle ABD is equal to angle BDC and angle ADB is equal to angle DBC. 6. As the alternate interior angles are congruent the opposite sides of quadrilateral ABCD are parallel. 7. Therefore, ABCD is a parallelogram. Which is the first incorrect statement in Clara’s proof? Statement 4 Statement 5 Statement 7 Statement 6

    • 2 years ago
  2. J.L. Group Title
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    http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_1008_16/image0024e8da341.jpg

    • 2 years ago
  3. J.L. Group Title
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    Can anyone help? @Hero @gitahimart

    • 2 years ago
  4. Hero Group Title
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    Ya, I'm already here

    • 2 years ago
  5. J.L. Group Title
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    Do you think you can help? I have no idea what to do...

    • 2 years ago
  6. A.Avinash_Goutham Group Title
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    pic? i think it's 4 btw

    • 2 years ago
  7. J.L. Group Title
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    the picture is in the link

    • 2 years ago
  8. A.Avinash_Goutham Group Title
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    oh sry........it may not be 4....

    • 2 years ago
  9. gitahimart Group Title
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    I think statement 5 is wrong coz they're not corresponding

    • 2 years ago
  10. A.Avinash_Goutham Group Title
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    yup i think it's 5 too......

    • 2 years ago
  11. J.L. Group Title
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    Transitive Property of Equality For real numbers a, b, and c, if a = b and b = c, then a = c.

    • 2 years ago
  12. J.L. Group Title
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    You guys sure? @A.Avinash_Goutham and @gitahimart

    • 2 years ago
  13. A.Avinash_Goutham Group Title
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    like i was checking the options nd i feel that the rest are fine

    • 2 years ago
  14. gitahimart Group Title
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    am with @A.Avinash_Goutham on this one, 5 is the most odd out

    • 2 years ago
  15. gitahimart Group Title
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    @J.L. thanks

    • 2 years ago
  16. J.L. Group Title
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    Can you give a medal to @A.Avinash_Goutham

    • 2 years ago
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