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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 18 cm long and 8 cm wide. Find its area.

    18 cm8 cm

  2. 2. A rectangle is 8 cm long and 10 cm wide. Find its area.

    8 cm10 cm

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

    11 cm5 cm

  4. 4. A rectangle is 7 cm long and 5 cm wide. Find its perimeter.

    7 cm5 cm

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

    6 cm4 cm

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

    10 cm12 cm

  7. 7. A rectangle is 5 cm long and 2 cm wide. Find its perimeter.

    5 cm2 cm

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

    5 cm9 cm

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

    9 cm8 cm

  10. 10. A rectangle is 20 cm long and 10 cm wide. Find its perimeter.

    20 cm10 cm

  11. 11. A rectangle is 4 cm long and 11 cm wide. Find its area.

    4 cm11 cm

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

    3 cm11 cm
12 questions · Seed 48 · 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 18 cm long and 8 cm wide. Find its area.

    144 cm²

    18 × 8 = 144 cm².

  2. 2. A rectangle is 8 cm long and 10 cm wide. Find its area.

    80 cm²

    8 × 10 = 80 cm².

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

    32 cm

    2 × (11 + 5) = 32 cm.

  4. 4. A rectangle is 7 cm long and 5 cm wide. Find its perimeter.

    24 cm

    2 × (7 + 5) = 24 cm.

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

    24 cm²

    6 × 4 = 24 cm².

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

    120 cm²

    10 × 12 = 120 cm².

  7. 7. A rectangle is 5 cm long and 2 cm wide. Find its perimeter.

    14 cm

    2 × (5 + 2) = 14 cm.

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

    28 cm

    2 × (5 + 9) = 28 cm.

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

    34 cm

    2 × (9 + 8) = 34 cm.

  10. 10. A rectangle is 20 cm long and 10 cm wide. Find its perimeter.

    60 cm

    2 × (20 + 10) = 60 cm.

  11. 11. A rectangle is 4 cm long and 11 cm wide. Find its area.

    44 cm²

    4 × 11 = 44 cm².

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

    33 cm²

    3 × 11 = 33 cm².

12 questions · Seed 48 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 10-12

Area & perimeter

Take your time. Show your thinking.

  1. 1. A rectangle is 18 cm long and 8 cm wide. Find its area.

    18 cm8 cm

  2. 2. A rectangle is 8 cm long and 10 cm wide. Find its area.

    8 cm10 cm

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

    11 cm5 cm

  4. 4. A rectangle is 7 cm long and 5 cm wide. Find its perimeter.

    7 cm5 cm

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

    6 cm4 cm

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

    10 cm12 cm

  7. 7. A rectangle is 5 cm long and 2 cm wide. Find its perimeter.

    5 cm2 cm

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

    5 cm9 cm

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

    9 cm8 cm

  10. 10. A rectangle is 20 cm long and 10 cm wide. Find its perimeter.

    20 cm10 cm

  11. 11. A rectangle is 4 cm long and 11 cm wide. Find its area.

    4 cm11 cm

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

    3 cm11 cm
12 questions · Seed 48 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 10-12

Area & perimeter

Answers and reasoning. Review before teaching.

  1. 1. A rectangle is 18 cm long and 8 cm wide. Find its area.

    144 cm²

    18 × 8 = 144 cm².

  2. 2. A rectangle is 8 cm long and 10 cm wide. Find its area.

    80 cm²

    8 × 10 = 80 cm².

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

    32 cm

    2 × (11 + 5) = 32 cm.

  4. 4. A rectangle is 7 cm long and 5 cm wide. Find its perimeter.

    24 cm

    2 × (7 + 5) = 24 cm.

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

    24 cm²

    6 × 4 = 24 cm².

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

    120 cm²

    10 × 12 = 120 cm².

  7. 7. A rectangle is 5 cm long and 2 cm wide. Find its perimeter.

    14 cm

    2 × (5 + 2) = 14 cm.

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

    28 cm

    2 × (5 + 9) = 28 cm.

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

    34 cm

    2 × (9 + 8) = 34 cm.

  10. 10. A rectangle is 20 cm long and 10 cm wide. Find its perimeter.

    60 cm

    2 × (20 + 10) = 60 cm.

  11. 11. A rectangle is 4 cm long and 11 cm wide. Find its area.

    44 cm²

    4 × 11 = 44 cm².

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

    33 cm²

    3 × 11 = 33 cm².

12 questions · Seed 48 · Age guidance, not curriculum certification