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Order the steps: find the surface area of a cuboid

Exercise and reference answers

Steps
  1. Identify the length, breadth and height
  2. Work out the area of each of the three different faces
  3. Add those three areas together
  4. Double the total, because each face has a matching opposite
  5. Report the answer in square units

Explanation

Faces come in pairs, which is where the factor of 2 comes from. Source: syllabus Maths, Ch 9 Mensuration.
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