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Perimeter and Area of 2D shapes

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GCSE Maths (Year 7) Mind Map on Perimeter and Area of 2D shapes, created by Ellen Billingham on 05/05/2013.
Ellen Billingham
Mind Map by Ellen Billingham, updated more than 1 year ago
Ellen Billingham
Created by Ellen Billingham over 11 years ago
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Resource summary

Perimeter and Area of 2D shapes
  1. Perimeter
    1. You add up the lengths of all the sides
      1. Given in cm, m, mm or whatever unit the question says.
      2. Area
        1. Rectangle
          1. bh
          2. triangle
            1. 1/2bh
            2. Parallelogram
              1. bh
              2. Trapezium
                1. (a+b)h
                2. Given in squared units.
                  1. For compound shapes, split it up into different shapes and work them out separately, but don't forget to add them together!
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