Perimeter of a Rectangle

On this webpage you will find our range of worksheets to help your child learn to work out the perimeter of a range of rectangles.

These sheets are graded from easiest to hardest, and each sheet comes complete with answers.

Using these sheets will help your child to:

• understand what perimeter is;
• know how to find the perimeter of a rectangle;
• find the perimeter of rectilinear shapes;
• know how to work out the side length of a rectangle if we know the perimeter.

• Perimeter is the distance around the outside of a shape.
• It can be measured in cm, inches, feet, yards, km, miles, etc.

A good way of thinking about the perimeter of a shape in front of you is to imagine that you are very small and standing on one of the corners of the shape. Imagine walking along the sides of the shape until you get back to where you started. The distance you have walked will be the perimeter.

For more help with perimeter please use: this link.

Perimeter Example

Find the perimeter of the rectangle below.

We will work the perimeter out using the 3 different ways above:

1. Add up the lengths of each side separately: 7 + 2 + 7 + 2 = 18
2. Double the lengths of the adjacent sides and add them: double 7 + double 2 = 14 + 4 = 18
3. Add the adjacent sides and double the answer: double (7 + 2) = double 9 = 18

A rectilinear shape is a shape made up of two or more rectangles.

In the following sheets, you need to find the missing side lengths, then add them up to find the perimeter of the shapes.

These sheets are suitable for 4th and 5th graders.

We have more perimeter resources and worksheets.

Check out the pages below!

Here is our selection of free printable area worksheets for 3rd and up.

Using these sheets will help your child to:

• work out the areas of a range of rectangles;
• find the area of rectilinear shapes;
• find the areas of a right triangle and different quadrilaterals.

The Math Salamanders hope you enjoy using these free printable Math worksheets and all our other Math games and resources.

We welcome any comments about our site or worksheets on the Facebook comments box at the bottom of every page.