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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 9 cm wide. Find its perimeter.

    10 cm9 cm

  2. 2. A rectangle is 14 cm long and 2 cm wide. Find its perimeter.

    14 cm2 cm

  3. 3. A rectangle is 18 cm long and 7 cm wide. Find its area.

    18 cm7 cm

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

    4 cm4 cm

  5. 5. A rectangle is 16 cm long and 7 cm wide. Find its area.

    16 cm7 cm

  6. 6. A rectangle is 14 cm long and 10 cm wide. Find its perimeter.

    14 cm10 cm

  7. 7. A rectangle is 19 cm long and 2 cm wide. Find its perimeter.

    19 cm2 cm

  8. 8. A rectangle is 19 cm long and 3 cm wide. Find its area.

    19 cm3 cm

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

    10 cm2 cm

  10. 10. A rectangle is 16 cm long and 10 cm wide. Find its area.

    16 cm10 cm

  11. 11. A rectangle is 16 cm long and 11 cm wide. Find its perimeter.

    16 cm11 cm

  12. 12. A rectangle is 14 cm long and 12 cm wide. Find its perimeter.

    14 cm12 cm
12 questions · Seed 88 · 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 9 cm wide. Find its perimeter.

    38 cm

    2 × (10 + 9) = 38 cm.

  2. 2. A rectangle is 14 cm long and 2 cm wide. Find its perimeter.

    32 cm

    2 × (14 + 2) = 32 cm.

  3. 3. A rectangle is 18 cm long and 7 cm wide. Find its area.

    126 cm²

    18 × 7 = 126 cm².

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

    16 cm²

    4 × 4 = 16 cm².

  5. 5. A rectangle is 16 cm long and 7 cm wide. Find its area.

    112 cm²

    16 × 7 = 112 cm².

  6. 6. A rectangle is 14 cm long and 10 cm wide. Find its perimeter.

    48 cm

    2 × (14 + 10) = 48 cm.

  7. 7. A rectangle is 19 cm long and 2 cm wide. Find its perimeter.

    42 cm

    2 × (19 + 2) = 42 cm.

  8. 8. A rectangle is 19 cm long and 3 cm wide. Find its area.

    57 cm²

    19 × 3 = 57 cm².

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

    20 cm²

    10 × 2 = 20 cm².

  10. 10. A rectangle is 16 cm long and 10 cm wide. Find its area.

    160 cm²

    16 × 10 = 160 cm².

  11. 11. A rectangle is 16 cm long and 11 cm wide. Find its perimeter.

    54 cm

    2 × (16 + 11) = 54 cm.

  12. 12. A rectangle is 14 cm long and 12 cm wide. Find its perimeter.

    52 cm

    2 × (14 + 12) = 52 cm.

12 questions · Seed 88 · 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 9 cm wide. Find its perimeter.

    10 cm9 cm

  2. 2. A rectangle is 14 cm long and 2 cm wide. Find its perimeter.

    14 cm2 cm

  3. 3. A rectangle is 18 cm long and 7 cm wide. Find its area.

    18 cm7 cm

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

    4 cm4 cm

  5. 5. A rectangle is 16 cm long and 7 cm wide. Find its area.

    16 cm7 cm

  6. 6. A rectangle is 14 cm long and 10 cm wide. Find its perimeter.

    14 cm10 cm

  7. 7. A rectangle is 19 cm long and 2 cm wide. Find its perimeter.

    19 cm2 cm

  8. 8. A rectangle is 19 cm long and 3 cm wide. Find its area.

    19 cm3 cm

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

    10 cm2 cm

  10. 10. A rectangle is 16 cm long and 10 cm wide. Find its area.

    16 cm10 cm

  11. 11. A rectangle is 16 cm long and 11 cm wide. Find its perimeter.

    16 cm11 cm

  12. 12. A rectangle is 14 cm long and 12 cm wide. Find its perimeter.

    14 cm12 cm
12 questions · Seed 88 · 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 9 cm wide. Find its perimeter.

    38 cm

    2 × (10 + 9) = 38 cm.

  2. 2. A rectangle is 14 cm long and 2 cm wide. Find its perimeter.

    32 cm

    2 × (14 + 2) = 32 cm.

  3. 3. A rectangle is 18 cm long and 7 cm wide. Find its area.

    126 cm²

    18 × 7 = 126 cm².

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

    16 cm²

    4 × 4 = 16 cm².

  5. 5. A rectangle is 16 cm long and 7 cm wide. Find its area.

    112 cm²

    16 × 7 = 112 cm².

  6. 6. A rectangle is 14 cm long and 10 cm wide. Find its perimeter.

    48 cm

    2 × (14 + 10) = 48 cm.

  7. 7. A rectangle is 19 cm long and 2 cm wide. Find its perimeter.

    42 cm

    2 × (19 + 2) = 42 cm.

  8. 8. A rectangle is 19 cm long and 3 cm wide. Find its area.

    57 cm²

    19 × 3 = 57 cm².

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

    20 cm²

    10 × 2 = 20 cm².

  10. 10. A rectangle is 16 cm long and 10 cm wide. Find its area.

    160 cm²

    16 × 10 = 160 cm².

  11. 11. A rectangle is 16 cm long and 11 cm wide. Find its perimeter.

    54 cm

    2 × (16 + 11) = 54 cm.

  12. 12. A rectangle is 14 cm long and 12 cm wide. Find its perimeter.

    52 cm

    2 × (14 + 12) = 52 cm.

12 questions · Seed 88 · Age guidance, not curriculum certification