Measure and calculate perimeter

What you'll learn

1. 1

   Imagine you have a fence around your garden 🏡. The distance all the way around the outside is the perimeter!

2. 2

   What does the perimeter measure?

3. 3

   Here is a rectangle. The red line shows the perimeter — it goes all the way around the outside. 🟥

4. 4

   Let's find the perimeter of this rectangle together! 📝

5. 5

   Now you try! Drag the numbers to add up the sides of this rectangle. 🎯

6. 6

   A square has sides of 5 cm each. What is its perimeter?