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RH

  • one year ago

Please help! :( The coordinates of the midpoints of the sides of a triangle are A(0, 1), B(4, 0), and C(2, –2). Find the coordinates of the vertices of the triangle. Hint: You should plot out this problem using graph paper! A. (–2, 1); (2, 3); (6, –2) B. (–2, –1); (–2, 3); (5, –3) C. (–2, –2); (0, 3); (0, –1) D. (–2, –1); (2, 3); (6, –3)

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  1. syhna
    • one year ago
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    all i know is trial and error using the midpoint formula on each choices ...

  2. RH
    • one year ago
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    @syhna you suggest trying every choice?

  3. syhna
    • one year ago
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    well you dont really have to make an effort, you'll see it through the coordinates

  4. syhna
    • one year ago
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    look, for example if you'll examine letter A , the y coordinate of one of its midpoint should be 2... there's no positive 2 y coordinate in the given midpoints

  5. RH
    • one year ago
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    |dw:1364252727030:dw|

  6. RH
    • one year ago
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    I have plotted the points

  7. RH
    • one year ago
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    @syhna

  8. syhna
    • one year ago
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    what points are those? the midpoints?

  9. RH
    • one year ago
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    The points that are given to plot, what should I do now? :(

  10. syhna
    • one year ago
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    try this.. you are using a graphing paper right? try to double the length of the sides...

  11. syhna
    • one year ago
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    oh no i dont think that'll work sorry

  12. RH
    • one year ago
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    @syhna :( oh ok then

  13. syhna
    • one year ago
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    but the answer is d.. i guess... wait ill think of a possible solution

  14. RH
    • one year ago
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    @syhna thank you so much anyway for your time and participation! it means a lot

  15. syhna
    • one year ago
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    the midpoint formula is (x + xsub1) / 2 and (y + ysub1)/2 right?

  16. RH
    • one year ago
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    yes

  17. syhna
    • one year ago
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    T.T i cant think of anything

  18. RH
    • one year ago
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    @syhna Don't worry about it! No problem! Thanks a lot for trying :)

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