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Grade 10 - Algebra Question

  1. Oct 4, 2005 #1
    Please, I really need this answer by today (before 12 hrs from now), for my take-home-quiz..
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    A quadrilateral has vertices K(-1,4) L(2,2) M(0,-1) and N(-3,1). Verify that:

    a) a quadrilateral is a square





    b) each diagonal of the quadrilateral is the perpendicular bisector of the other diagonal





    c) the diagonals of the quadrilateral are equal in length
     
  2. jcsd
  3. Oct 4, 2005 #2

    Ouabache

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    sorry, take home quizzes are to test your knowledge not ours.
     
  4. Oct 4, 2005 #3
    I cannot understand the question, please help me... -- forget i said it was take-home-quiz, its actually my homework.. please just help..
     
  5. Oct 4, 2005 #4

    Integral

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    Did you plot the given points? Are they a square? What do you know of the properties of a square that you could apply to this?

    Look at the definition of a perpendicular bisector, can you apply it to the diagonals of your quadrilateral?

    Tell us something of what you know about a quadrilateral and a square.
     
  6. Oct 5, 2005 #5
    Try plotting the points on a graph paper, it will help you vizualize

    Now here are some hints:
    Square as 4 congruent sides
    Square has at least 1 right angle


    look up the distance formula in ur textbook and how to find slope, and how slopes are in right angles
     
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