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# perimeter

noun (perimeter, perimeters)

«perimeter» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. The perimeter is the length all the way around a shape. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/perimeter/#m1)
2. The perimeter of a place is its outer edge or border, like the fence around a field. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/perimeter/#m2)

### In the lessons

In maths: the distance around a shape: fences, borders, frames; add all the sides. In everyday life: fencing a garden, putting a border on a picture or ribbon around a cake. In stories: guards walk around the perimeter of the castle.

### Examples

- Find the perimeter of a square with 5 cm sides. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/perimeter/#x1)
- The perimeter of the garden is 40 meters. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/perimeter/#x2)
- How much fence is needed for the perimeter? [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/perimeter/#x3)
- The rectangle has a perimeter of 30 cm. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/perimeter/#x4)
- We put a ribbon around the perimeter of the card. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/perimeter/#x5)
- The dog ran along the perimeter of the field. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/perimeter/#x6)
- A triangle with sides 3, 4 and 5 cm has a perimeter of 12 cm. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/perimeter/#x7)
- Guards patrolled the perimeter of the camp. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/perimeter/#x8)

### Note

Add all the sides. Rectangle: 2 × (length + width); square: 4 × side. Trap: perimeter is not area; do not multiply length by width. Perimeter is a length, so its unit is cm or m, not square cm. The perimeter of a circle is called its circumference.

## On Mova

- [Trees and pragmatics of «perimeter» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/perimeter/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«perimeter» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/perimeter.html) on Mova free.