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Gabylovesyou Group Title

If A = (1, 4) B = (3, 1) and C = (6, 3), classify the the following triangle as either equilateral or right. Type the word equilateral or right in the blank. @ganeshie8

  • 3 months ago
  • 3 months ago

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  1. Gabylovesyou Group Title
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    what formula should be used to find this ?

    • 3 months ago
  2. Gabylovesyou Group Title
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    @dumbcow

    • 3 months ago
  3. hoblos Group Title
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    try calculating the length of the 3 sides if they are equal, it would be equilateral if not, you have to check if they apply Pythagoras theorem

    • 3 months ago
  4. Gabylovesyou Group Title
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    using the slope formula ?

    • 3 months ago
  5. hoblos Group Title
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    |dw:1396980676890:dw| Pythagoras theorem : c^2 = a^2 + b^2

    • 3 months ago
  6. Gabylovesyou Group Title
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    its an equilateral triangle

    • 3 months ago
  7. hoblos Group Title
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    all the sides are equal ?

    • 3 months ago
  8. Gabylovesyou Group Title
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    wait no i think its a right ;/ idk ..

    • 3 months ago
  9. hoblos Group Title
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    do you know how to calculate the distance between two points ?

    • 3 months ago
  10. Gabylovesyou Group Title
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    yes

    • 3 months ago
  11. hoblos Group Title
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    so calculate AB=? AC=? BC=?

    • 3 months ago
  12. Gabylovesyou Group Title
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    AB - 13 BC - 13 CA - 26

    • 3 months ago
  13. Gabylovesyou Group Title
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    so its a right ?

    • 3 months ago
  14. hoblos Group Title
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    they are actually AB = √13 BC = √13 CA = √26 right ?

    • 3 months ago
  15. Gabylovesyou Group Title
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    yea

    • 3 months ago
  16. hoblos Group Title
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    so let's see if it's right is CA^2 = AB^2 + BC^2 ?

    • 3 months ago
  17. Gabylovesyou Group Title
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    no

    • 3 months ago
  18. phi Group Title
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    I would plot it. If the choice is either equilateral or right triangle, you can tell by eyeball

    • 3 months ago
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  19. Gabylovesyou Group Title
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    jk yes haha

    • 3 months ago
  20. hoblos Group Title
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    CA^2 = ?

    • 3 months ago
  21. Gabylovesyou Group Title
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    26 and @phi looks like a right

    • 3 months ago
  22. phi Group Title
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    If you want to prove it, find the lengths if each side and show pythagoras works or find the slope of the two lines that form the right angle and see if the slopes are negative reciprocals

    • 3 months ago
  23. Gabylovesyou Group Title
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    which r the two lines that form the right angle?

    • 3 months ago
  24. phi Group Title
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    lines AB and BC

    • 3 months ago
  25. Gabylovesyou Group Title
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    the slopes dont match -1.5 and 0.66666667

    • 3 months ago
  26. phi Group Title
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    -3/2 and ⅔ it's easier to see if you multiply one by -1 and then flip it, you get the other *negative reciprocals*

    • 3 months ago
  27. phi Group Title
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    which means the lines are perpendicular (form a 90º angle) so you have proven its a right triangle.

    • 3 months ago
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