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anonymous

  • one year ago

geometry help????? will medal nd fan!!!!!!!!!!

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  1. anonymous
    • one year ago
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    PQ and RS are two lines that intersect at point T, as shown below:

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  2. anonymous
    • one year ago
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    Which fact is used to prove that angle PTS is always equal to angle RTQ? Sum of the measures of angles RTQ and QTS is 180°. Lines PQ and RS intersect at an angle greater than a right angle. Line segments PQ and RS do not have a fixed length. Sum of the measures of angles PTR and QTS is 180°.

  3. anonymous
    • one year ago
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    @e.mccormick can you help me?

  4. e.mccormick
    • one year ago
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    Well, which of those is always true and has to do with angles? For example, the " Line segments PQ and RS do not have a fixed length." is ALWAYS false because if it is a segment it has a fixed length and even if you talk about lines their infitinte length has nothing to do with angles.

  5. anonymous
    • one year ago
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    ok

  6. e.mccormick
    • one year ago
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    OK? Umm... so which of those is always true and has to do with angles? I already eliminated one. You can eliminate two others.

  7. anonymous
    • one year ago
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    which one did you eliminate?

  8. e.mccormick
    • one year ago
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    For example, the "Line segments PQ and RS do not have a fixed length." is ALWAYS false because if it is a segment it has a fixed length and even if you talk about lines their infitinte length has nothing to do with angles. The one I said is always false.

  9. anonymous
    • one year ago
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    could I eliminate Sum of the measures of angles PTR and QTS is 180°.?

  10. e.mccormick
    • one year ago
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    Yes. Those would only be 180 at right angles! So that is certainly false.

  11. e.mccormick
    • one year ago
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    That leaves only two. One of them is false, the other is the answer.

  12. anonymous
    • one year ago
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    how about Lines PQ and RS intersect at an angle greater than a right angle?

  13. e.mccormick
    • one year ago
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    Yah, that is false and true... it is nonsense. They also intersect at an angle LESS than 90! Just on the other side of the line. So by killing those three you are only left with one: Sum of the measures of angles RTQ and QTS is 180°.

  14. anonymous
    • one year ago
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    ok thank you so much (:

  15. anonymous
    • one year ago
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    can you help me with another one?

  16. e.mccormick
    • one year ago
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    Sometimes multiple choice is about what is right... but with this one is was about what was wrong. =)

  17. anonymous
    • one year ago
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    ok

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