FreeMath
Grade 6hard

Surface Area of Rectangular Prisms Practice

Practice finding surface area of rectangular prisms. Add the areas of all 6 faces: SA = 2(lw + lh + wh). For cubes: SA = 6s².

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All 20 Practice Problems

Every question in this set. Solve them on paper, or use the interactive tool above for instant feedback and hints.

  1. 1.Box: 3 × 4 × 5. Surface area = ?
  2. 2.Box: 2 × 3 × 4. Surface area = ?
  3. 3.Cube: side 5. Surface area = ?
  4. 4.Box: 6 × 4 × 2. Surface area = ?
  5. 5.Cube: side 3. Surface area = ?
  6. 6.Box: 5 × 5 × 3. Surface area = ?
  7. 7.Box: 8 × 6 × 4. Surface area = ?
  8. 8.Cube: side 4. Surface area = ?
  9. 9.Box: 10 × 5 × 2. Surface area = ?
  10. 10.Box: 7 × 3 × 2. Surface area = ?
  11. 11.Cube: side 6. Surface area = ?
  12. 12.Box: 9 × 6 × 3. Surface area = ?
  13. 13.Box: 4 × 4 × 8. Surface area = ?
  14. 14.Cube: side 7. Surface area = ?
  15. 15.Box: 12 × 8 × 5. Surface area = ?
  16. 16.Box: 6 × 6 × 4. Surface area = ?
  17. 17.Cube: side 10. Surface area = ?
  18. 18.Box: 15 × 10 × 4. Surface area = ?
  19. 19.Box: 8 × 5 × 3. Surface area = ?
  20. 20.Cube: side 8. Surface area = ?
Show answer key
  1. 1.Box: 3 × 4 × 5. Surface area = ? Answer: 94
  2. 2.Box: 2 × 3 × 4. Surface area = ? Answer: 52
  3. 3.Cube: side 5. Surface area = ? Answer: 150
  4. 4.Box: 6 × 4 × 2. Surface area = ? Answer: 88
  5. 5.Cube: side 3. Surface area = ? Answer: 54
  6. 6.Box: 5 × 5 × 3. Surface area = ? Answer: 110
  7. 7.Box: 8 × 6 × 4. Surface area = ? Answer: 208
  8. 8.Cube: side 4. Surface area = ? Answer: 96
  9. 9.Box: 10 × 5 × 2. Surface area = ? Answer: 160
  10. 10.Box: 7 × 3 × 2. Surface area = ? Answer: 82
  11. 11.Cube: side 6. Surface area = ? Answer: 216
  12. 12.Box: 9 × 6 × 3. Surface area = ? Answer: 198
  13. 13.Box: 4 × 4 × 8. Surface area = ? Answer: 160
  14. 14.Cube: side 7. Surface area = ? Answer: 294
  15. 15.Box: 12 × 8 × 5. Surface area = ? Answer: 392
  16. 16.Box: 6 × 6 × 4. Surface area = ? Answer: 168
  17. 17.Cube: side 10. Surface area = ? Answer: 600
  18. 18.Box: 15 × 10 × 4. Surface area = ? Answer: 500
  19. 19.Box: 8 × 5 × 3. Surface area = ? Answer: 158
  20. 20.Cube: side 8. Surface area = ? Answer: 384

About This Practice

This practice set includes 20 surface area problems. Surface area calculations are essential for wrapping, painting, and material estimation.

Want more practice? See all Grade 6 practice →