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anonymous

  • one year ago

riangle ABC has been rotated 90° to create triangle DEF. Using the image below, prove that perpendicular lines have opposite and reciprocal slopes. You must show all of your work to receive credit.

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    dang um

  3. anonymous
    • one year ago
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    I hate Geometry.....

  4. anonymous
    • one year ago
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    me too

  5. anonymous
    • one year ago
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    Get the slope of EF and the slope of BC. Multiply the 2 together, and if you get -1, then they're perpendicular.

  6. anonymous
    • one year ago
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    Thanks so much!

  7. anonymous
    • one year ago
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    did you get your answer?

  8. anonymous
    • one year ago
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    Working on that. Give me one moment please! :)

  9. anonymous
    • one year ago
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    ok:)

  10. anonymous
    • one year ago
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    From my calculations, the slope of EF is about -0.75 and the slope of BC is about 1.33...

  11. anonymous
    • one year ago
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    sounds right

  12. anonymous
    • one year ago
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    That makes -0.9975. So they do have reciprocal slopes?

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