Math-MateSchool maths, made clearer

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Topic 7 · overview

Topic overview

Clear explanations and worked examples from the Math-Mate school maths textbook.

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ANGLES

TYPES OF ANGLES

  • Acute angles
  • Right angles
  • Obtuse angles
  • Straight angles
  • Reflex angles
  • 360 degrees
  • When not to simplify angles larger than 360 degrees
  • Complementary angles
  • Supplementary angles
  • Vertically opposite angles
  • Describing angles

SOLVING FOR ANGLES IN A DIAGRAM

  • Angle question

TRIANGLES

  • Types of triangles
  • Handy Hint #15 - Angles within a triangle rule

DESCRIBING TRIANGLES USING INTERIOR ANGLES

  • Acute-angled triangles
  • Right-angled triangles
  • Obtuse-angled triangles

DESCRIBING TRIANGLES USING SIDES

  • Equilateral triangles
  • Isosceles triangles
  • Scalene triangles

EXTERIOR ANGLES

  • Triangle angles question

PARALLEL LINES

  • Transversal lines
  • Corresponding angles
  • Alternate angles
  • Co-interior angles
  • Parallel lines question

ANGLES OF ELEVATION AND DEPRESSION

  • Boat and lighthouse question
  • Handy Hint #16 - Making angles clear in diagrams

SYMMETRY

  • Multiple axes of symmetry
  • Symmetry and letters
  • Reflecting using x- and y-axes