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Maths
Geometrical properties: polygons

Starter quiz

  • Match each pair of angles with the keywords that describe the relationship between them.
    Match each pair of angles with the keywords that describe the relationship between them.
    • ∠BCD and ∠CEF
      ⇔
      corresponding angles ✓
    • ∠ACE and ∠HEC
      ⇔
      co-interior angles ✓
    • ∠ACE and ∠CEF
      ⇔
      alternate angles ✓
    • ∠HEC and ∠GEF
      ⇔
      vertically opposite angles ✓
  • A dodecagon has 12 sides. Find the sum of the interior angles in a dodecagon.
    • 180°
    • 360°
    • 1800°  ✓
    • 2160°
    • 2520°
  • Exterior angles for any polygon sum to ______°.
    • '360' ✓
  • Each exterior angle for a regular hexagon is ______°.
    • '60' ✓
  • Each interior angle in a regular octagon is ______°.
    • '135' ✓
  • The pentagon and hexagon in the diagram are both regular. The angle marked in the diagram is <span class="blank">______</span>°.
    The pentagon and hexagon in the diagram are both regular. The angle marked in the diagram is ______°.
    • '132' ✓
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