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MathsAges 10-12

Area & perimeter

Use labelled rectangles to calculate area and perimeter. Keep square units and length units distinct. Review suitability for your learners before teaching.

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Age band:Ages 7-9Ages 10-12

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Worksheet StudioPractice pack · Ages 10-12

Area & perimeter

Take your time. Show your thinking.

  1. 1. A rectangle is 10 cm long and 5 cm wide. Find its area.

    10 cm5 cm

  2. 2. A rectangle is 9 cm long and 12 cm wide. Find its perimeter.

    9 cm12 cm

  3. 3. A rectangle is 12 cm long and 11 cm wide. Find its perimeter.

    12 cm11 cm

  4. 4. A rectangle is 20 cm long and 6 cm wide. Find its perimeter.

    20 cm6 cm

  5. 5. A rectangle is 11 cm long and 3 cm wide. Find its area.

    11 cm3 cm

  6. 6. A rectangle is 3 cm long and 3 cm wide. Find its perimeter.

    3 cm3 cm

  7. 7. A rectangle is 14 cm long and 4 cm wide. Find its area.

    14 cm4 cm

  8. 8. A rectangle is 9 cm long and 7 cm wide. Find its area.

    9 cm7 cm

  9. 9. A rectangle is 3 cm long and 5 cm wide. Find its perimeter.

    3 cm5 cm

  10. 10. A rectangle is 19 cm long and 9 cm wide. Find its perimeter.

    19 cm9 cm

  11. 11. A rectangle is 8 cm long and 7 cm wide. Find its area.

    8 cm7 cm

  12. 12. A rectangle is 18 cm long and 3 cm wide. Find its area.

    18 cm3 cm
12 questions · Seed 54 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 10-12

Area & perimeter

Answers and reasoning. Review before teaching.

  1. 1. A rectangle is 10 cm long and 5 cm wide. Find its area.

    50 cm²

    10 × 5 = 50 cm².

  2. 2. A rectangle is 9 cm long and 12 cm wide. Find its perimeter.

    42 cm

    2 × (9 + 12) = 42 cm.

  3. 3. A rectangle is 12 cm long and 11 cm wide. Find its perimeter.

    46 cm

    2 × (12 + 11) = 46 cm.

  4. 4. A rectangle is 20 cm long and 6 cm wide. Find its perimeter.

    52 cm

    2 × (20 + 6) = 52 cm.

  5. 5. A rectangle is 11 cm long and 3 cm wide. Find its area.

    33 cm²

    11 × 3 = 33 cm².

  6. 6. A rectangle is 3 cm long and 3 cm wide. Find its perimeter.

    12 cm

    2 × (3 + 3) = 12 cm.

  7. 7. A rectangle is 14 cm long and 4 cm wide. Find its area.

    56 cm²

    14 × 4 = 56 cm².

  8. 8. A rectangle is 9 cm long and 7 cm wide. Find its area.

    63 cm²

    9 × 7 = 63 cm².

  9. 9. A rectangle is 3 cm long and 5 cm wide. Find its perimeter.

    16 cm

    2 × (3 + 5) = 16 cm.

  10. 10. A rectangle is 19 cm long and 9 cm wide. Find its perimeter.

    56 cm

    2 × (19 + 9) = 56 cm.

  11. 11. A rectangle is 8 cm long and 7 cm wide. Find its area.

    56 cm²

    8 × 7 = 56 cm².

  12. 12. A rectangle is 18 cm long and 3 cm wide. Find its area.

    54 cm²

    18 × 3 = 54 cm².

12 questions · Seed 54 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 10-12

Area & perimeter

Take your time. Show your thinking.

  1. 1. A rectangle is 10 cm long and 5 cm wide. Find its area.

    10 cm5 cm

  2. 2. A rectangle is 9 cm long and 12 cm wide. Find its perimeter.

    9 cm12 cm

  3. 3. A rectangle is 12 cm long and 11 cm wide. Find its perimeter.

    12 cm11 cm

  4. 4. A rectangle is 20 cm long and 6 cm wide. Find its perimeter.

    20 cm6 cm

  5. 5. A rectangle is 11 cm long and 3 cm wide. Find its area.

    11 cm3 cm

  6. 6. A rectangle is 3 cm long and 3 cm wide. Find its perimeter.

    3 cm3 cm

  7. 7. A rectangle is 14 cm long and 4 cm wide. Find its area.

    14 cm4 cm

  8. 8. A rectangle is 9 cm long and 7 cm wide. Find its area.

    9 cm7 cm

  9. 9. A rectangle is 3 cm long and 5 cm wide. Find its perimeter.

    3 cm5 cm

  10. 10. A rectangle is 19 cm long and 9 cm wide. Find its perimeter.

    19 cm9 cm

  11. 11. A rectangle is 8 cm long and 7 cm wide. Find its area.

    8 cm7 cm

  12. 12. A rectangle is 18 cm long and 3 cm wide. Find its area.

    18 cm3 cm
12 questions · Seed 54 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 10-12

Area & perimeter

Answers and reasoning. Review before teaching.

  1. 1. A rectangle is 10 cm long and 5 cm wide. Find its area.

    50 cm²

    10 × 5 = 50 cm².

  2. 2. A rectangle is 9 cm long and 12 cm wide. Find its perimeter.

    42 cm

    2 × (9 + 12) = 42 cm.

  3. 3. A rectangle is 12 cm long and 11 cm wide. Find its perimeter.

    46 cm

    2 × (12 + 11) = 46 cm.

  4. 4. A rectangle is 20 cm long and 6 cm wide. Find its perimeter.

    52 cm

    2 × (20 + 6) = 52 cm.

  5. 5. A rectangle is 11 cm long and 3 cm wide. Find its area.

    33 cm²

    11 × 3 = 33 cm².

  6. 6. A rectangle is 3 cm long and 3 cm wide. Find its perimeter.

    12 cm

    2 × (3 + 3) = 12 cm.

  7. 7. A rectangle is 14 cm long and 4 cm wide. Find its area.

    56 cm²

    14 × 4 = 56 cm².

  8. 8. A rectangle is 9 cm long and 7 cm wide. Find its area.

    63 cm²

    9 × 7 = 63 cm².

  9. 9. A rectangle is 3 cm long and 5 cm wide. Find its perimeter.

    16 cm

    2 × (3 + 5) = 16 cm.

  10. 10. A rectangle is 19 cm long and 9 cm wide. Find its perimeter.

    56 cm

    2 × (19 + 9) = 56 cm.

  11. 11. A rectangle is 8 cm long and 7 cm wide. Find its area.

    56 cm²

    8 × 7 = 56 cm².

  12. 12. A rectangle is 18 cm long and 3 cm wide. Find its area.

    54 cm²

    18 × 3 = 54 cm².

12 questions · Seed 54 · Age guidance, not curriculum certification