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GRE Coordinate Geometry Practice Question of the Week #35

Here’s this week’s practice question– good luck, we’ll be posting the answer and explanation tomorrow afternoon. Hint: draw a diagram!

The points A(0, 0), B(0, 4a – 5) and C(2a + 1, 2a + 6) form a triangle. If , what is the area of triangle ABC?

  1. 102
  2. 120
  3. 132
  4. 144
  5. 256

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One Response to GRE Coordinate Geometry Practice Question of the Week #35

  1. Nevin January 23, 2012 at 2:12 pm #

    4a-5 = 2a+6

    a=11/2

    2a+1=12

    2a+6=17

    area = 1/2 * 12 * 17 = 102


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