Perimeter and Area of 2D shapes

Ellen Billingham
Mind Map by , created over 6 years ago

GCSE Maths (Year 7) Mind Map on Perimeter and Area of 2D shapes, created by Ellen Billingham on 05/05/2013.

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Ellen Billingham
Created by Ellen Billingham over 6 years ago
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Perimeter and Area of 2D shapes
1 Perimeter
1.1 You add up the lengths of all the sides
1.2 Given in cm, m, mm or whatever unit the question says.
2 Area
2.1 Rectangle
2.1.1 bh
2.2 triangle
2.2.1 1/2bh
2.3 Parallelogram
2.3.1 bh
2.4 Trapezium
2.4.1 (a+b)h
2.5 Given in squared units.
2.6 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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