Perimeter |
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Assessment Questions |

Perimeter
#### Perimeter and Circumference

## How to get the Perimeter of plain shapes

#### 1. Rectangle

#### 2. Square

#### 3. Full circle

#### 4. Semi circle

The distance around a shape is called its **perimeter**.

The perimeter of a circle is its **circumference.**

- To find the perimeter of a plain shape like a
**rectangle**, use the formula**2(***L*+*W)*

- To find the perimeter of a
**square**use**4 X***L*

- To get the circumference of a
**full circle**use**π***d*

- To get the distance all round a
**half a circle**, get the circumference of the half circle and the diameter. Use the formula**π***d*+*d*

- To get the distance all round a figure made up of various shapes then add up the measurements.