4th Grade Area and Perimeter of Rectangles Worksheet (PDF)

4th Grade math worksheet: Area and Perimeter of Rectangles – Maths PDF

This area perimeter worksheet for 4th Grade covers area and perimeter of rectangles (Common Core 4.MD.A.3), with a free PDF to print.

Area perimeter worksheet (4th Grade) – first page of the printable PDF

These 20 problems practice finding the area and perimeter of rectangles and squares, and finding a missing side. They match Common Core 4.MD.A.3. Start with counting squares and using the formulas.

The last six problems are real-world word problems about gardens, bedrooms, posters, patios, and a dog pen. Write the correct units, such as feet or square feet.

Grade 4 · Common Core State Standards: 4.MD.A.3

Area perimeter worksheet: exercises 1 to 10

Exercise 1 – Count the squares

Count the unit squares to find the area of the rectangle.

5 units3 units
5 columns and 3 rows of unit squares.

Exercise 2 – Area of a rectangle

A card is \(7\text{ in}\) long and \(3\text{ in}\) wide. Find its area.

Exercise 3 – Perimeter by adding

Find the perimeter of the rectangle by adding all four sides.

6 ft6 ft2 ft2 ft
All four sides are labeled.

Exercise 4 – Perimeter formula

A rectangle is \(9\text{ yd}\) long and \(4\text{ yd}\) wide. Find its perimeter.

Exercise 5 – Area of a square

A square tile has sides of \(6\text{ in}\). Find its area.

Exercise 6 – Perimeter of a square

A square sandbox has sides of \(8\text{ ft}\). Find its perimeter.

Exercise 7 – Find the area

Find the area of the rectangle.

12 ft5 ft
Length 12 ft, width 5 ft.

Exercise 8 – Find the perimeter

Find the perimeter of a rectangle that is \(12\text{ ft}\) long and \(5\text{ ft}\) wide.

Exercise 9 – Complete the table

Find the area and perimeter of each rectangle.

Length Width Area Perimeter
10 in 4 in ? ?
9 in 6 in ? ?
11 in 2 in ? ?

Exercise 10 – Missing width

A rectangle has an area of \(48\text{ sq ft}\) and a length of \(8\text{ ft}\). Find the width.

Area = 48 sq ft8 ft? ft
The area and one side are known.

Exercises 11 and up

Exercise 11 – Missing length

A rectangle has an area of \(72\text{ sq in}\) and a width of \(9\text{ in}\). Find the length.

Exercise 12 – Missing side from perimeter

A rectangle has a perimeter of \(30\text{ in}\) and a length of \(9\text{ in}\). Find the width.

Exercise 13 – Same area, many shapes

A rectangle has an area of \(18\text{ sq units}\) and whole-number sides. List every possible pair of length and width. Find each perimeter. Which rectangle has the smallest perimeter?

Exercise 14 – Doubling a rectangle

A rectangle is \(5\text{ ft}\) by \(3\text{ ft}\). Find its area and perimeter. Then double both the length and the width, and find the new area and perimeter.

Exercise 15 – Garden fence

Maya’s garden is a rectangle \(14\text{ ft}\) long and \(9\text{ ft}\) wide. Fence costs $3 per foot. How many feet of fence does she need, and what is the total cost?

14 ft14 ft9 ft9 ft
All four sides are labeled.

Exercise 16 – Bedroom carpet

Jamal’s bedroom floor is \(12\text{ ft}\) by \(10\text{ ft}\). Carpet costs $2 per square foot. How much does it cost to carpet the whole floor?

Exercise 17 – Fence for a garden plot

Sofia’s rectangular garden has an area of \(96\text{ sq ft}\) and a length of \(12\text{ ft}\). How much fence goes around it?

Exercise 18 – Poster board

Priya’s poster board is \(28\text{ in}\) by \(22\text{ in}\). She glues ribbon along the whole edge and covers the front with paper. How many inches of ribbon does she need, and how many square inches of paper?

Exercise 19 – Patio tiles

Ethan covers a \(15\text{ ft}\) by \(8\text{ ft}\) patio with square tiles that are 1 ft on each side. Tiles come in boxes of 20. How many boxes does he need?

15 ft8 ft
The patio floor.

Exercise 20 – Dog pen

Diego has \(36\text{ ft}\) of fence for a rectangular dog pen. The length is \(10\text{ ft}\). Find the width, then the area of the pen.

View solution

Key facts behind this area perimeter worksheet

Key facts
  • Area of a rectangle = length × width, measured in square units.
  • Perimeter of a rectangle = 2 × length + 2 × width, measured in plain units.
  • A square is a rectangle whose four sides are equal.
  • If you know the area and one side, divide to find the other side.
  • Area tells how much to cover; perimeter tells how far around.

How to use this area perimeter worksheet

Work through the exercises in order: they go from simple to challenging. Write every step on paper, then compare with the solutions page and redo any exercise you missed the next day.

Download the area perimeter worksheet as a PDF with the button below and keep it with your notes.

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