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Grade 10 · Core Mathematics · Measurements and Geometry

Area of Polygons: Grade 10 Core Mathematics

The 12 lessons for the Grade 10 Core Mathematics sub-strand Area of Polygons, in teaching order, with the KICD learning outcome each one covers.

Strand Measurements and GeometryLessons 12

Learning outcomes

By the end of the sub-strand, the learner should be able to:

  1. derive the formula for the area of a triangle given two sides and an included angle
  2. work out the area of a triangle given two sides and an included angle
  3. determine the area of a triangle using Heron's formula
  4. determine the area of quadrilaterals in different situations
  5. work out the area of regular heptagon and octagon
  6. determine the area of irregular polygons in different situations
  7. explore the area of polygons as used in real-life situations

Lessons in Area of Polygons

  1. 1Deriving and Applying the Formula for Area of a TriangleDerive the formula for the area of a triangle given two sides and an included angle
  2. 2Area of a Triangle Using Two Sides and an Included AngleWork out the area of a triangle given two sides and an included angle
  3. 3Determining Area of a Triangle using Heron's FormulaDetermine the area of a triangle using Heron's formula
  4. 4Area of a Triangle Using Heron's FormulaDetermine the area of a triangle using Heron's formula
  5. 5Determining Area of Quadrilaterals in Different Situations: Parallelograms and TrapeziumsDetermine the area of quadrilaterals in different situations
  6. 6Determining Area of Quadrilaterals in Different Situations: Kites and Complex FiguresDetermine the area of quadrilaterals in different situations
  7. 7Area of Regular Polygons: Heptagons and OctagonsWork out the area of regular heptagon and octagon
  8. 8Area of Regular Polygons: Heptagons and Octagons (Lesson 2)Work out the area of regular heptagon and octagon
  9. 9Determining Area of Irregular Polygons by Shape SubdivisionDetermine the area of irregular polygons in different situations
  10. 10Determining Area of Irregular Polygons in Real SituationsDetermine the area of irregular polygons in different situations
  11. 11Exploring Area of Polygons in Real-Life SituationsExplore the area of polygons as used in real-life situations
  12. 12Applying Polygon Area Calculations in Real-Life SituationsExplore the area of polygons as used in real-life situations