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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 17 cm long and 3 cm wide. Find its perimeter.

    17 cm3 cm

  2. 2. A rectangle is 18 cm long and 9 cm wide. Find its area.

    18 cm9 cm

  3. 3. A rectangle is 19 cm long and 5 cm wide. Find its perimeter.

    19 cm5 cm

  4. 4. A rectangle is 8 cm long and 8 cm wide. Find its perimeter.

    8 cm8 cm

  5. 5. A rectangle is 12 cm long and 10 cm wide. Find its area.

    12 cm10 cm

  6. 6. A rectangle is 7 cm long and 6 cm wide. Find its area.

    7 cm6 cm

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

    14 cm7 cm

  8. 8. A rectangle is 3 cm long and 4 cm wide. Find its area.

    3 cm4 cm

  9. 9. A rectangle is 10 cm long and 3 cm wide. Find its perimeter.

    10 cm3 cm

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

    11 cm3 cm

  11. 11. A rectangle is 10 cm long and 11 cm wide. Find its perimeter.

    10 cm11 cm

  12. 12. A rectangle is 10 cm long and 4 cm wide. Find its area.

    10 cm4 cm
12 questions · Seed 57 · 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 17 cm long and 3 cm wide. Find its perimeter.

    40 cm

    2 × (17 + 3) = 40 cm.

  2. 2. A rectangle is 18 cm long and 9 cm wide. Find its area.

    162 cm²

    18 × 9 = 162 cm².

  3. 3. A rectangle is 19 cm long and 5 cm wide. Find its perimeter.

    48 cm

    2 × (19 + 5) = 48 cm.

  4. 4. A rectangle is 8 cm long and 8 cm wide. Find its perimeter.

    32 cm

    2 × (8 + 8) = 32 cm.

  5. 5. A rectangle is 12 cm long and 10 cm wide. Find its area.

    120 cm²

    12 × 10 = 120 cm².

  6. 6. A rectangle is 7 cm long and 6 cm wide. Find its area.

    42 cm²

    7 × 6 = 42 cm².

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

    98 cm²

    14 × 7 = 98 cm².

  8. 8. A rectangle is 3 cm long and 4 cm wide. Find its area.

    12 cm²

    3 × 4 = 12 cm².

  9. 9. A rectangle is 10 cm long and 3 cm wide. Find its perimeter.

    26 cm

    2 × (10 + 3) = 26 cm.

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

    28 cm

    2 × (11 + 3) = 28 cm.

  11. 11. A rectangle is 10 cm long and 11 cm wide. Find its perimeter.

    42 cm

    2 × (10 + 11) = 42 cm.

  12. 12. A rectangle is 10 cm long and 4 cm wide. Find its area.

    40 cm²

    10 × 4 = 40 cm².

12 questions · Seed 57 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 10-12

Area & perimeter

Take your time. Show your thinking.

  1. 1. A rectangle is 17 cm long and 3 cm wide. Find its perimeter.

    17 cm3 cm

  2. 2. A rectangle is 18 cm long and 9 cm wide. Find its area.

    18 cm9 cm

  3. 3. A rectangle is 19 cm long and 5 cm wide. Find its perimeter.

    19 cm5 cm

  4. 4. A rectangle is 8 cm long and 8 cm wide. Find its perimeter.

    8 cm8 cm

  5. 5. A rectangle is 12 cm long and 10 cm wide. Find its area.

    12 cm10 cm

  6. 6. A rectangle is 7 cm long and 6 cm wide. Find its area.

    7 cm6 cm

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

    14 cm7 cm

  8. 8. A rectangle is 3 cm long and 4 cm wide. Find its area.

    3 cm4 cm

  9. 9. A rectangle is 10 cm long and 3 cm wide. Find its perimeter.

    10 cm3 cm

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

    11 cm3 cm

  11. 11. A rectangle is 10 cm long and 11 cm wide. Find its perimeter.

    10 cm11 cm

  12. 12. A rectangle is 10 cm long and 4 cm wide. Find its area.

    10 cm4 cm
12 questions · Seed 57 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 10-12

Area & perimeter

Answers and reasoning. Review before teaching.

  1. 1. A rectangle is 17 cm long and 3 cm wide. Find its perimeter.

    40 cm

    2 × (17 + 3) = 40 cm.

  2. 2. A rectangle is 18 cm long and 9 cm wide. Find its area.

    162 cm²

    18 × 9 = 162 cm².

  3. 3. A rectangle is 19 cm long and 5 cm wide. Find its perimeter.

    48 cm

    2 × (19 + 5) = 48 cm.

  4. 4. A rectangle is 8 cm long and 8 cm wide. Find its perimeter.

    32 cm

    2 × (8 + 8) = 32 cm.

  5. 5. A rectangle is 12 cm long and 10 cm wide. Find its area.

    120 cm²

    12 × 10 = 120 cm².

  6. 6. A rectangle is 7 cm long and 6 cm wide. Find its area.

    42 cm²

    7 × 6 = 42 cm².

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

    98 cm²

    14 × 7 = 98 cm².

  8. 8. A rectangle is 3 cm long and 4 cm wide. Find its area.

    12 cm²

    3 × 4 = 12 cm².

  9. 9. A rectangle is 10 cm long and 3 cm wide. Find its perimeter.

    26 cm

    2 × (10 + 3) = 26 cm.

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

    28 cm

    2 × (11 + 3) = 28 cm.

  11. 11. A rectangle is 10 cm long and 11 cm wide. Find its perimeter.

    42 cm

    2 × (10 + 11) = 42 cm.

  12. 12. A rectangle is 10 cm long and 4 cm wide. Find its area.

    40 cm²

    10 × 4 = 40 cm².

12 questions · Seed 57 · Age guidance, not curriculum certification