← Mensuration: trapezium, cuboid and cube lesson New set →

Class 8 Maths Worksheet: Mensuration

Maths worksheets lesson 62: Mensuration: trapezium, cuboid and cube · Set 162 · 40 sums
TalentJR

The method (Flat parts add up): Trapezium: area = ½ × (a + b) × h. Rhombus: area = ½ × d₁ × d₂. Cuboid: total surface area = 2(lb + bh + hl); four walls = 2h(l + b). Cube: total surface area = 6a²; edge = √(surface area ÷ 6). Missing height of a trapezium = 2 × area ÷ (a + b).

NameDateTime takenScore ___ / 40
  1. 1.A trapezium has an area of 230 square cm. Its parallel sides are 10 cm and 13 cm. What is the distance between them (in cm)?
  2. 2.Each edge of a cube is 10 cm. What is its total surface area (in square cm)?
  3. 3.A trapezium has an area of 423 square cm. Its parallel sides are 18 cm and 29 cm. What is the distance between them (in cm)?
  4. 4.Each edge of a cube is 2 cm. What is its total surface area (in square cm)?
  5. 5.A trapezium has an area of 288 square cm. Its parallel sides are 22 cm and 26 cm. What is the distance between them (in cm)?
  6. 6.Each edge of a cube is 16 cm. What is its total surface area (in square cm)?
  7. 7.Each edge of a cube is 17 cm. What is its total surface area (in square cm)?
  8. 8.A trapezium has an area of 32 square cm. Its parallel sides are 5 cm and 27 cm. What is the distance between them (in cm)?
  9. 9.Each edge of a cube is 9 cm. What is its total surface area (in square cm)?
  10. 10.Each edge of a cube is 8 cm. What is its total surface area (in square cm)?
  11. 11.The total surface area of a cube is 24 square cm. How long is each edge (in cm)?
  12. 12.The diagonals of a rhombus are 26 cm and 8 cm. What is its area (in square cm)?
  13. 13.A trapezium has parallel sides of 6 cm and 2 cm, and the distance between them is 9 cm. What is its area (in square cm)?
  14. 14.A room is 6 m long, 6 m wide and 5 m high. What is the area of its four walls (in square m)?
  15. 15.A room is 7 m long, 3 m wide and 5 m high. What is the area of its four walls (in square m)?
  16. 16.A trapezium has parallel sides of 5 cm and 30 cm, and the distance between them is 6 cm. What is its area (in square cm)?
  17. 17.A trapezium has an area of 35 square cm. Its parallel sides are 12 cm and 2 cm. What is the distance between them (in cm)?
  18. 18.The total surface area of a cube is 1536 square cm. How long is each edge (in cm)?
  19. 19.The diagonals of a rhombus are 30 cm and 7 cm. What is its area (in square cm)?
  20. 20.A cuboid is 11 cm long, 9 cm wide and 3 cm high. What is its total surface area (in square cm)?
  21. 21.Each edge of a cube is 3 cm. What is its total surface area (in square cm)?
  22. 22.The diagonals of a rhombus are 16 cm and 18 cm. What is its area (in square cm)?
  23. 23.A room is 5 m long, 5 m wide and 3 m high. What is the area of its four walls (in square m)?
  24. 24.Each edge of a cube is 18 cm. What is its total surface area (in square cm)?
  25. 25.A trapezium has parallel sides of 6 cm and 8 cm, and the distance between them is 5 cm. What is its area (in square cm)?
  26. 26.A cuboid is 7 cm long, 4 cm wide and 10 cm high. What is its total surface area (in square cm)?
  27. 27.A trapezium has an area of 27 square cm. Its parallel sides are 14 cm and 13 cm. What is the distance between them (in cm)?
  28. 28.The diagonals of a rhombus are 4 cm and 17 cm. What is its area (in square cm)?
  29. 29.A cuboid is 13 cm long, 2 cm wide and 2 cm high. What is its total surface area (in square cm)?
  30. 30.The diagonals of a rhombus are 8 cm and 19 cm. What is its area (in square cm)?
  31. 31.The diagonals of a rhombus are 18 cm and 22 cm. What is its area (in square cm)?
  32. 32.Each edge of a cube is 15 cm. What is its total surface area (in square cm)?
  33. 33.A room is 11 m long, 4 m wide and 5 m high. What is the area of its four walls (in square m)?
  34. 34.A trapezium has parallel sides of 30 cm and 19 cm, and the distance between them is 10 cm. What is its area (in square cm)?
  35. 35.The total surface area of a cube is 216 square cm. How long is each edge (in cm)?
  36. 36.Each edge of a cube is 20 cm. What is its total surface area (in square cm)?
  37. 37.The diagonals of a rhombus are 10 cm and 27 cm. What is its area (in square cm)?
  38. 38.A trapezium has parallel sides of 18 cm and 8 cm, and the distance between them is 11 cm. What is its area (in square cm)?
  39. 39.A trapezium has an area of 138 square cm. Its parallel sides are 13 cm and 10 cm. What is the distance between them (in cm)?
  40. 40.A room is 4 m long, 8 m wide and 3 m high. What is the area of its four walls (in square m)?

Answer key

  1. 20
  2. 600
  3. 18
  4. 24
  5. 12
  6. 1536
  7. 1734
  8. 2
  9. 486
  10. 384
  11. 2
  12. 104
  13. 36
  14. 120
  15. 100
  16. 105
  17. 5
  18. 16
  19. 105
  20. 318
  21. 54
  22. 144
  23. 60
  24. 1944
  25. 35
  26. 276
  27. 2
  28. 34
  29. 112
  30. 76
  31. 198
  32. 1350
  33. 150
  34. 245
  35. 6
  36. 2400
  37. 135
  38. 143
  39. 12
  40. 72

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets