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Area of triangles with any base and height

Year 7 maths · Fieldbook Learning

Name ______________________ Date __________

Multiply the base by the height, then halve it. Ignore any slanted side, because it is not the height.

  1. A triangular flower bed has a base of 5 ft and a height of 10 ft. Find its area in square feet.
  2. A triangular flower bed has a base of 6 m and a height of 3 m. Find its area in square metres.
  3. A triangle has a base of 8 m and a height of 8 m. Find its area in square metres.
  4. A triangular piece of fabric has a base of 9 ft and a height of 2 ft. Find its area in square feet.
  5. A triangle has a base of 4 cm and a height of 8 cm. Find its area in square centimetres.
  6. A triangular piece of fabric has a height of 3 cm, a base of 6 cm and a slanted side of 6 cm. Find its area in square centimetres.
  7. A triangular flower bed has a height of 11 cm and a base of 8 cm. Find its area in square centimetres.
  8. A triangular banner has a base of 6 ft and a height of 7 ft. Find its area in square feet.
  9. A triangular flower bed has a height of 18 cm, a base of 17 cm and a slanted side of 22 cm. Find its area in square centimetres.
  10. A triangular banner has a base of 20 ft and a height of 15 ft. Find its area in square feet.
  11. A triangular banner has a height of 5 cm, a base of 9 cm and a slanted side of 7 cm. Find its area in square centimetres.
  12. A triangular banner has a height of 19 cm, a base of 9 cm and a slanted side of 21 cm. Find its area in square centimetres.
  13. A triangular banner has a base of 7 ft and a height of 8 ft. Find its area in square feet.
  14. A triangular piece of fabric has a height of 14 cm and a base of 9 cm. Find its area in square centimetres.
  15. A triangle has a base of 11 m and a height of 29 m. Find its area in square metres.
  16. A triangular banner has a base of 23 m, a height of 13 m and a slanted side of 17 m. Find its area in square metres.
  17. A triangle has a base of 29 ft and a height of 15 ft. Find its area in square feet.
  18. A triangular banner has a height of 40 m and a base of 40 m. Find its area in square metres.
  19. A triangular flower bed has a base of 38 ft, a height of 18 ft and a slanted side of 20 ft. Find its area in square feet.
  20. A triangular piece of fabric has a height of 35 in, a base of 33 in and a slanted side of 38 in. Find its area in square inches.
More free practice: fieldbooklearning.com/uk/practice/year-7/area-of-triangles-with-any-base-and-height/

Play it as a quiz game

14 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: Area of triangles with any base and height

  1. 25
  2. 9
  3. 32
  4. 9
  5. 16
  6. 9
  7. 44
  8. 21
  9. 153
  10. 150
  11. 22.5
  12. 85.5
  13. 28
  14. 63
  15. 159.5
  16. 149.5
  17. 217.5
  18. 800
  19. 342
  20. 577.5