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Mathematics

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Quizzes in Mathematics for Grade 8

A cube has edge length 42 cm. What is its total surface area?

  • 74088 cm²
  • 504 cm²
  • 10584 cm²
  • 7056 cm²
Correct answer(s):
  • 10584 cm²

Using π = 3.14, find the volume of a sphere with radius 11 mm.

  • 69.08 mm³
  • 5572.45 mm³
  • 4179.34 mm³
  • 1519.76 mm³
Correct answer(s):
  • 5572.45 mm³

A rectangular cardboard is 47 mm by 9 mm. A square of side 5 mm is cut from it. What area remains?

  • 423 mm²
  • 92 mm²
  • 398 mm²
  • 448 mm²
Correct answer(s):
  • 398 mm²

Using π = 3.14, find the volume of a cone with radius 8 m and height 64 m.

  • 1607.68 m³
  • 200.96 m³
  • 12861.44 m³
  • 4287.15 m³
Correct answer(s):
  • 4287.15 m³

The area of a rectangle is 216 mm² and its breadth is 9 mm. What is the length?

  • 9 mm
  • 24 mm
  • 225 mm
  • 66 mm
Correct answer(s):
  • 24 mm

Using π = 3.14, find the area of a circle with radius 31 m.

  • 97.34 m²
  • 961 m²
  • 3017.54 m²
  • 194.86 m²
Correct answer(s):
  • 3017.54 m²

A rectangular garden is 9 m long and 5 m wide. What is its area?

  • 14 m²
  • 28 m²
  • 45 m²
  • 22 m²
Correct answer(s):
  • 45 m²

A rhombus has diagonals 52 cm and 26 cm. Find its area.

  • 1352 cm²
  • 39 cm²
  • 676 cm²
  • 78 cm²
Correct answer(s):
  • 676 cm²

Which measurements should be written in square units? Select all correct answers.

  • Perimeter of a field
  • Total surface area of a cube
  • Area of a wall
  • Volume of a tank
Correct answer(s):
  • Total surface area of a cube
  • Area of a wall

The parallel sides of a trapezium are 26 mm and 35 mm, and the height is 6 mm. What is its area?

  • 183 mm²
  • 5460 mm²
  • 33.5 mm²
  • 366 mm²
Correct answer(s):
  • 183 mm²

A floor is 71 m long and 8 m wide. If polishing costs 10 taka per m², what is the total cost?

  • 578 taka
  • 5680 taka
  • 4 units
  • 1580 taka
Correct answer(s):
  • 5680 taka

A parallelogram has base 39 cm and perpendicular height 6 cm. Find its area.

  • 117 cm²
  • 45 cm²
  • 234 cm²
  • 90 cm²
Correct answer(s):
  • 234 cm²

Using π = 3.14, find the volume of a sphere with radius 10 m.

  • 4186.67 m³
  • 3140 m³
  • 1256 m³
  • 62.8 m³
Correct answer(s):
  • 4186.67 m³

A rectangular cardboard is 46 m by 8 m. A square of side 4 m is cut from it. What area remains?

  • 384 m²
  • 368 m²
  • 352 m²
  • 92 m²
Correct answer(s):
  • 352 m²

Using π = 22/7, find the volume of a cone with radius 7 cm and height 63 cm.

  • 1386 cm³
  • 9702 cm³
  • 154 cm³
  • 3234 cm³
Correct answer(s):
  • 3234 cm³

A semicircular window has radius 38 cm. Using π = 3.14, what is its area?

  • 238.64 cm²
  • 4534.16 cm²
  • 2267.08 cm²
  • 1444 cm²
Correct answer(s):
  • 2267.08 cm²

Using π = 3.14, find the curved surface area of a cylinder with radius 13 mm and height 57 mm.

  • 30247.62 mm²
  • 4653.48 mm²
  • 5714.8 mm²
  • 530.66 mm²
Correct answer(s):
  • 4653.48 mm²

Using π = 22/7, find the circumference of a circle with radius 35 m.

  • 220 m
  • 1225 m
  • 3846.5 m
  • 110 m
Correct answer(s):
  • 220 m