Calculating the Area of Irregular Shapes

  • Calculating the Area of Irregular Shapes
  • Course: Mathematics
  • Grade: Year 7
  • Section: Area
  • Outcome: Calculate the area of irregular shapes.
  • Activity Type: Printable
  • Activity ID: 4564


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United Kingdom – National Curriculum expand/collapse

  • KS2 – Key Stage 2
    • KS2.Ma3 – Shape, space and measures
      • Knowledge, skills and understanding

        • Understanding measures

          • KS2.Ma3.4 – Pupils should be taught to:

            • KS2.Ma3.4.e – Find perimeters of simple shapes; find areas of rectangles using the formula, understanding its connection to counting squares and how it extends this approach; calculate the perimeter and area of shapes composed of rectangles.

        • Using and applying shape, space and measures

          • KS2.Ma3.1 – Pupils should be taught to:

            • Problem solving

              • KS2.Ma3.1.b – Select and use appropriate calculation skills to solve geometrical problems

Australia – Australian Curriculum expand/collapse

  • Year 6
    • Measurement and Geometry
      • Using units of measurement

        • ACMMG137 – Solve problems involving the comparison of lengths and areas using appropriate units

  • Year 7
    • Measurement and Geometry
      • Using units of measurement

        • ACMMG159 – Establish the formulas for areas of rectangles, triangles and parallelograms and use these in problem solving

New Zealand – National Standards expand/collapse

  • 7 – Year 7
    • 7.GM – Geometry and measurement
      • 7.GM.3 – Use side or edge lengths to find the perimeters and areas of rectangles and parallelograms and the volumes of cuboids, given whole-number dimensions

United States – Common Core State Standards expand/collapse

  • 3 – Grade 3
    • 3.MD – Measurement & Data
      • Mathematics

        • 3.MD.7 – Relate area to the operations of multiplication and addition.

          • 3.MD.7.d – Recognize area as additive. Find areas of rectilinear figures by decomposing them into non-overlapping rectangles and adding the areas of the non-overlapping parts, applying this technique to solve real world problems.