Part 1: Calculating Perimeter

Remember: perimeter is the total distance around the outside of a shape.

1. A rectangle is 8.5 cm long and 4 cm wide. What is its perimeter?

12.5 cm

17 cm

25 cm

34 cm

2. Add the side lengths of this polygon: 5.5 cm + 3 cm + 4.5 cm + 2.5 cm + 6 cm.

3. A square has sides of 7.25 cm. Calculate its perimeter.

4. Write the correct unit for the perimeter of a playground measuring 24 metres around its edge.

Answer: ____________

Part 2: Calculating Area

Remember: area of a rectangle = length × width.

5. Find the area of a rectangle that is 9 m long and 6 m wide.

6. A square has sides of 7.5 cm. What is its area?

15 cm²

30 cm²

56.25 cm²

60 cm²

7. A rectangle has an area of 48 cm² and a width of 6 cm. What is its length?

8. Rectangle A measures 3 cm × 8 cm. Rectangle B measures 4 cm × 6 cm. Calculate the area of each rectangle. Do they have the same area?

9. An irregular shape covers 14 full grid squares and 4 half-squares. Each grid square has an area of 1 cm². What is the total area?

10. Another shape covers 11 full grid squares and 6 half-squares. What is its area? Show how you counted the half-squares.

11. Shape A is a 2 cm × 8 cm rectangle. Shape B is a 5 cm × 5 cm square. Calculate the perimeter and area of each shape. What do you notice?