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Year 4 · Measurement

Area of rectangles

Area is the space inside a shape, measured in squares.

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How to do it

  1. Count the squares along the length and the width.
  2. Multiply length by width.
  3. Write the unit squared (cm²).

Worked example

A rectangle 5 cm by 3 cm
3 rows of 5 squares: 5 × 3 = 15
Area = 15 cm²

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Area uses cm², perimeter uses cm.

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