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Maths
Parallel and perpendicular sides in polygons (and perimeter)

Starter quiz

  • Look at these four shapes. What do they have in common?
    Look at these four shapes. What do they have in common?
    • They are all quadrilaterals.
    • They are all rectangles.
    • They all have at least one pair of parallel sides.  ✓
    • They all have at least one pair of perpendicular sides.
  • Order the shapes starting with the shape with the highest number of vertices.
    • 1
      ⇔
      Octagon
    • 2
      ⇔
      Hexagon
    • 3
      ⇔
      Pentagon
    • 4
      ⇔
      Rhombus
  • True or false? A trapezium must have a pair of perpendicular sides.
    • True
    • False ✓
  • Complete the definition. A parallelogram has four sides, four vertices and …
    • … only one pair of parallel sides.
    • … two pairs of parallel sides.  ✓
    • … only one pair of perpendicular sides.
    • … two pairs of perpendicular sides.
  • Which shape does this describe? A quadrilateral with four equal length sides. It has two pairs of parallel lines.
    • Rectangle
    • Rhombus  ✓
    • Trapezium
  • The hexagon has been decomposed into three parts. One is a parallelogram. Name one of the other two parts.
    The hexagon has been decomposed into three parts. One is a parallelogram. Name one of the other two parts.
    • 'trapezium' ✓
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