Classify Figures in Property Hierarchy Practice Test

A teacher shows this rule for sorting: “Properties determine classification, so shapes can be organized in a hierarchy.”

Categories and key properties:

• Quadrilateral: 4 sides
• Parallelogram: 2 pairs of parallel sides
• Rectangle: 4 right angles
• Rhombus: 4 equal sides
• Square: 4 equal sides and 4 right angles

Which statement about the hierarchy is incorrect?

A bulletin board shows that shapes can be organized in a hierarchy based on properties:

Quadrilateral (4 sides)

• Trapezoid (exactly 1 pair of parallel sides)
• Parallelogram (2 pairs of parallel sides)
  • Rectangle (4 right angles)
  • Rhombus (4 equal sides)
    • Square (4 equal sides and 4 right angles)

Shape D is described as: 4 sides, 2 pairs of parallel sides, and 4 equal sides. It does NOT have 4 right angles. Which statement correctly classifies Shape D?