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anonymous

  • one year ago

Line CF bisect segment ST. All lines bisect a segment at a 90 degree angle, so line CF and segment ST are perpendicular. Why or why not is this argument valid?

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  1. anonymous
    • one year ago
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    Can anyone walk me through it here? I don't want a direct answer please.

  2. jdoe0001
    • one year ago
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    so.. CF bisects ST are they perpendicular lines?

  3. anonymous
    • one year ago
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    Yes

  4. anonymous
    • one year ago
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    If they weren't they would never bisect.

  5. anonymous
    • one year ago
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    Or collide more like

  6. jdoe0001
    • one year ago
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    hmmm was checking the bisect meaning, and it's just to divide in half but I'd say yes, assuming "ll lines bisect a segment at a 90 degree angle"

  7. anonymous
    • one year ago
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    So would the answer be "since CF and ST collide they would have to be perpendicular"?

  8. jdoe0001
    • one year ago
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    http://www.mathsisfun.com/geometry/bisect.html <--- notice there, is a bisecting line

  9. jdoe0001
    • one year ago
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    if you move around the blue line, the red bisector, can bisect without being perpendicular

  10. anonymous
    • one year ago
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    Meaning when they're perpendicular but right on top of eachother.... so a better answer would be since all lines bisect at 90 degrees and CF bisects ST they would have to be perpendicular correct?

  11. anonymous
    • one year ago
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    when they're parallel* sorry lol

  12. anonymous
    • one year ago
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    Thanks :)

  13. jdoe0001
    • one year ago
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    hmmm well, if we assume " All lines bisect a segment at a 90 degree angle" is true then CF and ST are obviously perpendicular but you can bisect another line, that is, cut it two equal sides WITHOUT being perpendicular so " All lines bisect a segment at a 90 degree angle" is a fishy statement

  14. jdoe0001
    • one year ago
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    |dw:1442622532688:dw|

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