___________
Maths
Geometrical properties: polygons

Starter quiz

  • An ______ angle is an angle on the outside of a polygon between an extension of an edge and its adjacent edge.
    • acute
    • alternate
    • exterior  ✓
    • interior
    • obtuse
  • Adjacent angles on a straight line sum to ______°.
    • '180' ✓
  • The angle <Math>x</Math>° is <span class="blank">______</span>°.
    The angle x° is ______°.
    • '70' ✓
  • What is the size of ∠CDA?
    What is the size of ∠CDA?
    • 73°
    • 84°
    • 95°  ✓
    • 108°
  • A heptagon is a 7-sided polygon. The sum of its interior angles is ______°.
    • '900' ✓
  • Solve the equation: 5x + 40 = 360. x = ______
    • '64' ✓
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