GRE Problem Solving Question 602

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Source: Magoosh

The points A(0, 0), B(0, 4a - 5) and C(2a + 1, 2a + 6) form a triangle. If?∠ABC=90°?, what is the area of triangle ABC?

  • A 102
  • B 120
  • C 132
  • D 144
  • E 156

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