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Find the area of a triangle with decimal measurements

Year 6 maths · Fieldbook Learning

Name ______________________ Date __________

Area of a triangle = base × height ÷ 2. Multiply the decimals carefully.

  1. A triangle has a base of 3.8 cm and a height of 2.8 cm. What is its area?
  2. A triangle has a base of 5.9 cm and a height of 2.3 cm. What is its area?
  3. A triangle has a base of 5.1 cm and a height of 6 cm. What is its area?
  4. A triangle has a base of 5.6 cm and a height of 3.4 cm. What is its area?
  5. A triangle has a base of 8.4 cm and a height of 4.3 cm. What is its area?
  6. A triangle has a base of 8.4 cm and a height of 9.1 cm. What is its area?
  7. A triangle has a base of 6.1 cm and a height of 5.2 cm. What is its area?
  8. A triangle has a base of 3.6 cm and a height of 6.7 cm. What is its area?
  9. A triangle has a base of 3 cm and a height of 3.7 cm. What is its area?
  10. A triangle has a base of 11.5 cm and a height of 10 cm. What is its area?
  11. A triangle has a base of 10.4 cm and a height of 7.6 cm. What is its area?
  12. A triangle has a base of 14.8 cm and a height of 14.9 cm. What is its area?
  13. A triangle has a base of 24.6 m and a height of 27.2 m. What is its area?
  14. A triangle has a base of 14.4 m and a height of 24.2 m. What is its area?
  15. A triangle has a base of 22.3 m and a height of 29.1 m. What is its area?
  16. A triangle has a base of 27.1 m and a height of 11.9 m. What is its area?
  17. A triangle has a base of 9.7 m and a height of 33.7 m, and slanted sides of 34.7 m and 41.7 m. What is its area?
  18. A triangle has a base of 31.9 m and a height of 24.2 m, and slanted sides of 28.2 m and 30.2 m. What is its area?
  19. A triangle has a base of 35.8 m and a height of 22.9 m, and slanted sides of 26.9 m and 28.9 m. What is its area?
  20. A triangle has a base of 13.1 m and a height of 44.3 m, and slanted sides of 47.3 m and 51.3 m. What is its area?
More free practice: fieldbooklearning.com/au/practice/year-6/area-of-triangles-with-decimal-measurements/

Play it as a quiz game

20 of these questions as multiple choice, with near-miss wrong answers, ready for Kahoot or Blooket.

  1. Download the game's own question template: in Kahoot, Add question → Import spreadsheet; in Blooket, Create a set → Spreadsheet import.
  2. Click the matching button below, then click the first empty question row of the template and paste.
  3. Save the template (Kahoot needs .xlsx, Blooket .csv) and upload it.
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Answer key: Find the area of a triangle with decimal measurements

  1. 5.32 cm²
  2. 6.785 cm²
  3. 15.3 cm²
  4. 9.52 cm²
  5. 18.06 cm²
  6. 38.22 cm²
  7. 15.86 cm²
  8. 12.06 cm²
  9. 5.55 cm²
  10. 57.5 cm²
  11. 39.52 cm²
  12. 110.26 cm²
  13. 334.56 m²
  14. 174.24 m²
  15. 324.465 m²
  16. 161.245 m²
  17. 163.445 m²
  18. 385.99 m²
  19. 409.91 m²
  20. 290.165 m²