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

Class 8 Maths Worksheet: Mensuration

Maths worksheets lesson 62: Mensuration: trapezium, cuboid and cube · Set 104 · 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 105 square cm. Its parallel sides are 4 cm and 11 cm. What is the distance between them (in cm)?
  2. 2.A trapezium has an area of 105 square cm. Its parallel sides are 28 cm and 14 cm. What is the distance between them (in cm)?
  3. 3.The total surface area of a cube is 294 square cm. How long is each edge (in cm)?
  4. 4.A trapezium has an area of 228 square cm. Its parallel sides are 18 cm and 20 cm. What is the distance between them (in cm)?
  5. 5.The diagonals of a rhombus are 14 cm and 5 cm. What is its area (in square cm)?
  6. 6.A trapezium has parallel sides of 14 cm and 12 cm, and the distance between them is 7 cm. What is its area (in square cm)?
  7. 7.A room is 10 m long, 4 m wide and 4 m high. What is the area of its four walls (in square m)?
  8. 8.A trapezium has an area of 180 square cm. Its parallel sides are 27 cm and 9 cm. What is the distance between them (in cm)?
  9. 9.A room is 5 m long, 4 m wide and 5 m high. What is the area of its four walls (in square m)?
  10. 10.Each edge of a cube is 10 cm. What is its total surface area (in square cm)?
  11. 11.Each edge of a cube is 5 cm. What is its total surface area (in square cm)?
  12. 12.A trapezium has parallel sides of 23 cm and 21 cm, and the distance between them is 20 cm. What is its area (in square cm)?
  13. 13.A trapezium has an area of 165 square cm. Its parallel sides are 27 cm and 6 cm. What is the distance between them (in cm)?
  14. 14.A cuboid is 9 cm long, 10 cm wide and 4 cm high. What is its total surface area (in square cm)?
  15. 15.A trapezium has parallel sides of 10 cm and 27 cm, and the distance between them is 2 cm. What is its area (in square cm)?
  16. 16.A trapezium has parallel sides of 11 cm and 15 cm, and the distance between them is 12 cm. What is its area (in square cm)?
  17. 17.A trapezium has parallel sides of 29 cm and 6 cm, and the distance between them is 10 cm. What is its area (in square cm)?
  18. 18.A trapezium has an area of 160 square cm. Its parallel sides are 25 cm and 7 cm. What is the distance between them (in cm)?
  19. 19.A cuboid is 12 cm long, 5 cm wide and 4 cm high. What is its total surface area (in square cm)?
  20. 20.A trapezium has an area of 350 square cm. Its parallel sides are 11 cm and 24 cm. What is the distance between them (in cm)?
  21. 21.A trapezium has parallel sides of 28 cm and 11 cm, and the distance between them is 10 cm. What is its area (in square cm)?
  22. 22.A cuboid is 10 cm long, 2 cm wide and 4 cm high. What is its total surface area (in square cm)?
  23. 23.A room is 4 m long, 3 m wide and 4 m high. What is the area of its four walls (in square m)?
  24. 24.A cuboid is 7 cm long, 5 cm wide and 2 cm high. What is its total surface area (in square cm)?
  25. 25.Each edge of a cube is 6 cm. What is its total surface area (in square cm)?
  26. 26.Each edge of a cube is 12 cm. What is its total surface area (in square cm)?
  27. 27.A trapezium has an area of 74 square cm. Its parallel sides are 13 cm and 24 cm. What is the distance between them (in cm)?
  28. 28.A room is 6 m long, 4 m wide and 5 m high. What is the area of its four walls (in square m)?
  29. 29.Each edge of a cube is 25 cm. What is its total surface area (in square cm)?
  30. 30.Each edge of a cube is 11 cm. What is its total surface area (in square cm)?
  31. 31.Each edge of a cube is 17 cm. What is its total surface area (in square cm)?
  32. 32.A cuboid is 6 cm long, 7 cm wide and 6 cm high. What is its total surface area (in square cm)?
  33. 33.A trapezium has an area of 185 square cm. Its parallel sides are 28 cm and 9 cm. What is the distance between them (in cm)?
  34. 34.A room is 8 m long, 6 m wide and 3 m high. What is the area of its four walls (in square m)?
  35. 35.A trapezium has parallel sides of 8 cm and 17 cm, and the distance between them is 2 cm. What is its area (in square cm)?
  36. 36.A cuboid is 9 cm long, 10 cm wide and 3 cm high. What is its total surface area (in square cm)?
  37. 37.Each edge of a cube is 23 cm. What is its total surface area (in square cm)?
  38. 38.A trapezium has an area of 175 square cm. Its parallel sides are 17 cm and 18 cm. What is the distance between them (in cm)?
  39. 39.The total surface area of a cube is 1014 square cm. How long is each edge (in cm)?
  40. 40.A room is 11 m long, 9 m wide and 4 m high. What is the area of its four walls (in square m)?

Answer key

  1. 14
  2. 5
  3. 7
  4. 12
  5. 35
  6. 91
  7. 112
  8. 10
  9. 90
  10. 600
  11. 150
  12. 440
  13. 10
  14. 332
  15. 37
  16. 156
  17. 175
  18. 10
  19. 256
  20. 20
  21. 195
  22. 136
  23. 56
  24. 118
  25. 216
  26. 864
  27. 4
  28. 100
  29. 3750
  30. 726
  31. 1734
  32. 240
  33. 10
  34. 84
  35. 25
  36. 294
  37. 3174
  38. 10
  39. 13
  40. 160

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