Math 3 · Unit 6: Measurement, area and perimeter · Cambridge Primary Maths Stage 3

Questions

1. 1. What is the perimeter of a square with sides of 4 cm?

   • 8 cm
   • 12 cm
   • 16 cm
   • 4 cm
   Check

2. 2. A square has a perimeter of 16 cm. How long is each side?

   • 4 cm
   • 8 cm
   • 2 cm
   • 16 cm
   Check

3. 3. A regular triangle has sides of 5 cm. What is its perimeter?

   • 10 cm
   • 5 cm
   • 20 cm
   • 15 cm
   Check

4. 4. A rectangle is 6 cm long and 2 cm wide. What is its perimeter?

   • 14 cm
   • 8 cm
   • 16 cm
   • 12 cm
   Check

5. 5. What is a regular shape?

   • it has 4 sides
   • it has curved sides
   • it is a square only
   • all sides and angles are the same
   Check

6. 6. Which is an irregular shape?

   • a square
   • an equilateral triangle
   • a rectangle that is not a square
   • a regular hexagon
   Check

7. 7. A regular pentagon has sides of 16 metres. What is its perimeter?

   • 21 m
   • 80 m
   • 64 m
   • 96 m
   Check

8. 8. A regular hexagon has sides of 3 cm. What is its perimeter?

   • 18 cm
   • 24 cm
   • 9 cm
   • 12 cm
   Check

9. 9. A regular octagon has sides of 2 cm. What is its perimeter?

   • 8 cm
   • 10 cm
   • 12 cm
   • 16 cm
   Check

10. 10. A regular octagon has sides of 2 cm. Each side gets 2 cm longer. What is the new perimeter?

    • 24 cm
    • 18 cm
    • 20 cm
    • 32 cm
    Check

11. 11. A square has sides of 3 cm. Its sides are doubled. What is the new perimeter?

    • 18 cm
    • 6 cm
    • 24 cm
    • 12 cm
    Check

12. 12. A square has sides of 6 cm. Its sides are halved. What is the new perimeter?

    • 12 cm
    • 3 cm
    • 24 cm
    • 6 cm
    Check

13. 13. How many vertices does a hexagon have?

    • 8
    • 4
    • 5
    • 6
    Check

14. 14. A triangle has sides of 3 cm, 4 cm and 5 cm. What is its perimeter?

    • 9 cm
    • 60 cm
    • 12 cm
    • 7 cm
    Check

15. 15. Perimeter is …

    • the distance around the edge
    • the space inside
    • the longest side
    • the number of corners
    Check