Builder: If you're working out skirting boards or covings or anything like that that's running around the perimeter of a room, you would simply add those amounts up for each wall and each individual length and then get an overall measurement.
Pitch marker: Initially marking a pitch, we need to know the perimeter of the boxes, like this box here.
Gardener: The perimeter is the distance around the outside of any shape.
In this case, I'm fencing off a garden which is five meters by seven meters by five meters by seven meters.
So that's 24 meters.
It's important that I get the perimeter correct, so that I buy the right amount of fencing
Perimeter is the total distance around the edge of a shape. It can be useful when designing a garden.
Quick tips for tutors
Perimeter includes:
- Introduction to perimeter of shapes - what is perimeter and how to work it out
- Key vocabulary used to describe dimensions of a shape
- Practical examples of different methods for finding perimeters of shapes
- Activities to practise finding perimeter of some common shapes
Downloadable Factsheets
Entry 3 - The perimeter of triangles
How to calculate the perimeter of a triangle.
Entry 3 - The perimeter of shapes
How to calculate the perimeter of shapes, excluding rectangles.
Entry 3 - The perimeter of rectangles
Summary of the characteristics of a rectangle and methods for working out its perimeter.
Level 1 - Introduction to perimeter
Summary of the term 'perimeter' and examples of how to calculate the perimeter of rectangles.
Level 1 - Understanding perimeter: everyday examples
How to calculate the perimeter of different shapes using everyday examples.
Level 1 - Perimeter: rectangles and squares
Summary of the properties of rectangles and squares, and methods for working out their perimeters.
Downloadable Worksheets
Entry 1 & 2 - Measuring the perimeter
An activity in measuring the perimeter of a plot of land.
Entry 3 - Finding the perimeter of rectangles
Exercise in calculating the perimeter of rectangles.
Entry 3 - Finding the perimeter of triangles
Exercise in calculating the perimeter of triangles and measuring their sides.
Entry 3 - Perimeter problems
Exercise in working out the perimeter of rectangles and squares using everyday examples
Level 1 - Introduction: matching shapes to perimeters
Exercise in pairing shapes with perimeter calculations.
