GMAT 考满分题库

If x represents the sum of the interior angles of a regular hexagon and y represents the sum of the interior angles of a regular pentagon, then the difference between x and y is equal to the sum of the interior angles of what geometric shape?
  • ATriangle
  • BSquare
  • CRhombus
  • DTrapezoid
  • EPentagon
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正确答案: A

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