LET’S TRY ONE
A rectangle is 6 cm by 4 cm. What is its perimeter?
20
6 + 4 + 6 + 4 = 20 centimeters.
Learning steps & teaching tips
Add all four rectangle side lengths to find distance around it.
- A rectangle has two lengths and two widths.
- Work through the example. Explain how its evidence supports the answer.
- Try a new question; use the explanation to check your thinking.
Try it together
Write or draw your own example with different numbers. Solve it, then ask a partner to check the method as well as the answer.
A rectangle has two lengths and two widths.