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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 15 cm long and 4 cm wide. Find its area.

    15 cm4 cm

  2. 2. A rectangle is 18 cm long and 10 cm wide. Find its perimeter.

    18 cm10 cm

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

    18 cm9 cm

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

    11 cm4 cm

  5. 5. A rectangle is 15 cm long and 12 cm wide. Find its area.

    15 cm12 cm

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

    12 cm6 cm

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

    7 cm8 cm

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

    2 cm12 cm

  9. 9. A rectangle is 15 cm long and 2 cm wide. Find its area.

    15 cm2 cm

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

    10 cm12 cm

  11. 11. A rectangle is 9 cm long and 7 cm wide. Find its perimeter.

    9 cm7 cm

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

    3 cm8 cm
12 questions · Seed 66 · 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 15 cm long and 4 cm wide. Find its area.

    60 cm²

    15 × 4 = 60 cm².

  2. 2. A rectangle is 18 cm long and 10 cm wide. Find its perimeter.

    56 cm

    2 × (18 + 10) = 56 cm.

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

    162 cm²

    18 × 9 = 162 cm².

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

    44 cm²

    11 × 4 = 44 cm².

  5. 5. A rectangle is 15 cm long and 12 cm wide. Find its area.

    180 cm²

    15 × 12 = 180 cm².

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

    36 cm

    2 × (12 + 6) = 36 cm.

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

    30 cm

    2 × (7 + 8) = 30 cm.

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

    28 cm

    2 × (2 + 12) = 28 cm.

  9. 9. A rectangle is 15 cm long and 2 cm wide. Find its area.

    30 cm²

    15 × 2 = 30 cm².

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

    120 cm²

    10 × 12 = 120 cm².

  11. 11. A rectangle is 9 cm long and 7 cm wide. Find its perimeter.

    32 cm

    2 × (9 + 7) = 32 cm.

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

    24 cm²

    3 × 8 = 24 cm².

12 questions · Seed 66 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 10-12

Area & perimeter

Take your time. Show your thinking.

  1. 1. A rectangle is 15 cm long and 4 cm wide. Find its area.

    15 cm4 cm

  2. 2. A rectangle is 18 cm long and 10 cm wide. Find its perimeter.

    18 cm10 cm

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

    18 cm9 cm

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

    11 cm4 cm

  5. 5. A rectangle is 15 cm long and 12 cm wide. Find its area.

    15 cm12 cm

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

    12 cm6 cm

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

    7 cm8 cm

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

    2 cm12 cm

  9. 9. A rectangle is 15 cm long and 2 cm wide. Find its area.

    15 cm2 cm

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

    10 cm12 cm

  11. 11. A rectangle is 9 cm long and 7 cm wide. Find its perimeter.

    9 cm7 cm

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

    3 cm8 cm
12 questions · Seed 66 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 10-12

Area & perimeter

Answers and reasoning. Review before teaching.

  1. 1. A rectangle is 15 cm long and 4 cm wide. Find its area.

    60 cm²

    15 × 4 = 60 cm².

  2. 2. A rectangle is 18 cm long and 10 cm wide. Find its perimeter.

    56 cm

    2 × (18 + 10) = 56 cm.

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

    162 cm²

    18 × 9 = 162 cm².

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

    44 cm²

    11 × 4 = 44 cm².

  5. 5. A rectangle is 15 cm long and 12 cm wide. Find its area.

    180 cm²

    15 × 12 = 180 cm².

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

    36 cm

    2 × (12 + 6) = 36 cm.

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

    30 cm

    2 × (7 + 8) = 30 cm.

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

    28 cm

    2 × (2 + 12) = 28 cm.

  9. 9. A rectangle is 15 cm long and 2 cm wide. Find its area.

    30 cm²

    15 × 2 = 30 cm².

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

    120 cm²

    10 × 12 = 120 cm².

  11. 11. A rectangle is 9 cm long and 7 cm wide. Find its perimeter.

    32 cm

    2 × (9 + 7) = 32 cm.

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

    24 cm²

    3 × 8 = 24 cm².

12 questions · Seed 66 · Age guidance, not curriculum certification