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## Calculating the Area of Irregular Shapes

• Calculating the Area of Irregular Shapes
• Course: Mathematics
• 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.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

• ##### Measurement and Geometry
• Using units of measurement

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

• ##### 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.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.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.