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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 9 cm long and 2 cm wide. Find its perimeter.

    9 cm2 cm

  2. 2. A rectangle is 13 cm long and 12 cm wide. Find its area.

    13 cm12 cm

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

    10 cm9 cm

  4. 4. A rectangle is 18 cm long and 6 cm wide. Find its area.

    18 cm6 cm

  5. 5. A rectangle is 15 cm long and 3 cm wide. Find its perimeter.

    15 cm3 cm

  6. 6. A rectangle is 15 cm long and 9 cm wide. Find its perimeter.

    15 cm9 cm

  7. 7. A rectangle is 14 cm long and 10 cm wide. Find its area.

    14 cm10 cm

  8. 8. A rectangle is 13 cm long and 10 cm wide. Find its perimeter.

    13 cm10 cm

  9. 9. A rectangle is 20 cm long and 12 cm wide. Find its area.

    20 cm12 cm

  10. 10. A rectangle is 13 cm long and 3 cm wide. Find its perimeter.

    13 cm3 cm

  11. 11. A rectangle is 19 cm long and 8 cm wide. Find its area.

    19 cm8 cm

  12. 12. A rectangle is 9 cm long and 8 cm wide. Find its perimeter.

    9 cm8 cm
12 questions · Seed 79 · 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 9 cm long and 2 cm wide. Find its perimeter.

    22 cm

    2 × (9 + 2) = 22 cm.

  2. 2. A rectangle is 13 cm long and 12 cm wide. Find its area.

    156 cm²

    13 × 12 = 156 cm².

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

    90 cm²

    10 × 9 = 90 cm².

  4. 4. A rectangle is 18 cm long and 6 cm wide. Find its area.

    108 cm²

    18 × 6 = 108 cm².

  5. 5. A rectangle is 15 cm long and 3 cm wide. Find its perimeter.

    36 cm

    2 × (15 + 3) = 36 cm.

  6. 6. A rectangle is 15 cm long and 9 cm wide. Find its perimeter.

    48 cm

    2 × (15 + 9) = 48 cm.

  7. 7. A rectangle is 14 cm long and 10 cm wide. Find its area.

    140 cm²

    14 × 10 = 140 cm².

  8. 8. A rectangle is 13 cm long and 10 cm wide. Find its perimeter.

    46 cm

    2 × (13 + 10) = 46 cm.

  9. 9. A rectangle is 20 cm long and 12 cm wide. Find its area.

    240 cm²

    20 × 12 = 240 cm².

  10. 10. A rectangle is 13 cm long and 3 cm wide. Find its perimeter.

    32 cm

    2 × (13 + 3) = 32 cm.

  11. 11. A rectangle is 19 cm long and 8 cm wide. Find its area.

    152 cm²

    19 × 8 = 152 cm².

  12. 12. A rectangle is 9 cm long and 8 cm wide. Find its perimeter.

    34 cm

    2 × (9 + 8) = 34 cm.

12 questions · Seed 79 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 10-12

Area & perimeter

Take your time. Show your thinking.

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

    9 cm2 cm

  2. 2. A rectangle is 13 cm long and 12 cm wide. Find its area.

    13 cm12 cm

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

    10 cm9 cm

  4. 4. A rectangle is 18 cm long and 6 cm wide. Find its area.

    18 cm6 cm

  5. 5. A rectangle is 15 cm long and 3 cm wide. Find its perimeter.

    15 cm3 cm

  6. 6. A rectangle is 15 cm long and 9 cm wide. Find its perimeter.

    15 cm9 cm

  7. 7. A rectangle is 14 cm long and 10 cm wide. Find its area.

    14 cm10 cm

  8. 8. A rectangle is 13 cm long and 10 cm wide. Find its perimeter.

    13 cm10 cm

  9. 9. A rectangle is 20 cm long and 12 cm wide. Find its area.

    20 cm12 cm

  10. 10. A rectangle is 13 cm long and 3 cm wide. Find its perimeter.

    13 cm3 cm

  11. 11. A rectangle is 19 cm long and 8 cm wide. Find its area.

    19 cm8 cm

  12. 12. A rectangle is 9 cm long and 8 cm wide. Find its perimeter.

    9 cm8 cm
12 questions · Seed 79 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 10-12

Area & perimeter

Answers and reasoning. Review before teaching.

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

    22 cm

    2 × (9 + 2) = 22 cm.

  2. 2. A rectangle is 13 cm long and 12 cm wide. Find its area.

    156 cm²

    13 × 12 = 156 cm².

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

    90 cm²

    10 × 9 = 90 cm².

  4. 4. A rectangle is 18 cm long and 6 cm wide. Find its area.

    108 cm²

    18 × 6 = 108 cm².

  5. 5. A rectangle is 15 cm long and 3 cm wide. Find its perimeter.

    36 cm

    2 × (15 + 3) = 36 cm.

  6. 6. A rectangle is 15 cm long and 9 cm wide. Find its perimeter.

    48 cm

    2 × (15 + 9) = 48 cm.

  7. 7. A rectangle is 14 cm long and 10 cm wide. Find its area.

    140 cm²

    14 × 10 = 140 cm².

  8. 8. A rectangle is 13 cm long and 10 cm wide. Find its perimeter.

    46 cm

    2 × (13 + 10) = 46 cm.

  9. 9. A rectangle is 20 cm long and 12 cm wide. Find its area.

    240 cm²

    20 × 12 = 240 cm².

  10. 10. A rectangle is 13 cm long and 3 cm wide. Find its perimeter.

    32 cm

    2 × (13 + 3) = 32 cm.

  11. 11. A rectangle is 19 cm long and 8 cm wide. Find its area.

    152 cm²

    19 × 8 = 152 cm².

  12. 12. A rectangle is 9 cm long and 8 cm wide. Find its perimeter.

    34 cm

    2 × (9 + 8) = 34 cm.

12 questions · Seed 79 · Age guidance, not curriculum certification