71532
Description
Mind Map by Ellen Billingham, updated more than 1 year ago
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Created by Ellen Billingham
over 11 years ago
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Perimeter and Area of 2D shapes
- Perimeter
- You add up the lengths of all the sides
- Given in cm, m, mm or whatever unit the question says.
- You add up the lengths of all the sides
- Area
- Rectangle
- bh
- bh
- triangle
- 1/2bh
- 1/2bh
- Parallelogram
- bh
- bh
- Trapezium
- (a+b)h
- (a+b)h
- Given in squared units.
- For compound shapes, split it up
into different shapes and work
them out separately, but don't
forget to add them together!
- Rectangle
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