Worksheets · Geometry

Area of a trapezoid worksheet

A trapezoid has two parallel sides of different lengths, so you use their average as the width. Average the two bases, multiply by the height, and the answer is the same as a rectangle of that average width.

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Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

Sigma Prep · sigmaprep.io/worksheets

Name

Area of a Trapezoid

Date Period

Find each area or missing length.

  1. Find the area of the trapezoid.61112
  2. Work out the area of this trapezoid.5.5169
  3. A trapezoid has bases 5 and 9 and height 12. Find its area.
  4. How many square units does the trapezoid cover?7168.5
  5. What is the area of the trapezoid?389
  6. Calculate the area of the trapezoid shown.91414.5
  7. The parallel sides of a trapezoid are 8 and 6, and they are 3 apart. Find its area.
  8. Find the area.796.5
  9. A trapezoid has bases 3 and 5 and height 4. Find its area.
  10. Find the area.11.51816
  11. The parallel sides of a trapezoid are 7 and 3, and they are 9 apart. Find its area.
  12. What is the area of the trapezoid?7.51413
  13. The parallel sides of a trapezoid are 6 and 4, and they are 2 apart. Find its area.
  14. Work out the area of this trapezoid.51312.5
  15. Calculate the area of the trapezoid shown.8107
  16. How many square units does the trapezoid cover?9.51912
  17. A trapezoid has bases 3 and 9 and height 4. Find its area.
  18. Work out the area of this trapezoid.410.55
  19. Find the area of the trapezoid.694
  20. How many square units does the trapezoid cover?513.517

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

Sigma Prep · sigmaprep.io/worksheets

Name

Area of a TrapezoidAnswer keyVersion 1

Date Period

Find each area or missing length.

  1. Find the area of the trapezoid.61112102
  2. Work out the area of this trapezoid.5.516996.75
  3. A trapezoid has bases 5 and 9 and height 12. Find its area.84
  4. How many square units does the trapezoid cover?7168.597.75
  5. What is the area of the trapezoid?38949.5
  6. Calculate the area of the trapezoid shown.91414.5166.75
  7. The parallel sides of a trapezoid are 8 and 6, and they are 3 apart. Find its area.21
  8. Find the area.796.552
  9. A trapezoid has bases 3 and 5 and height 4. Find its area.16
  10. Find the area.11.51816236
  11. The parallel sides of a trapezoid are 7 and 3, and they are 9 apart. Find its area.45
  12. What is the area of the trapezoid?7.51413139.75
  13. The parallel sides of a trapezoid are 6 and 4, and they are 2 apart. Find its area.10
  14. Work out the area of this trapezoid.51312.5112.5
  15. Calculate the area of the trapezoid shown.810763
  16. How many square units does the trapezoid cover?9.51912171
  17. A trapezoid has bases 3 and 9 and height 4. Find its area.24
  18. Work out the area of this trapezoid.410.5536.25
  19. Find the area of the trapezoid.69430
  20. How many square units does the trapezoid cover?513.517157.25

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

How to do these

Find the area of a trapezoid with bases 6 and 10 and height 4

  1. The bases average to 8.
  2. 8 times the height 4 is 32.

The answer is 32.

Where students go wrong

Using a slanted side as the height. The height is the perpendicular distance between the two parallel sides, not the length of the leg joining them.

Also called area of trapezoids or trapezoid area formula.

Questions about these worksheets

Yes. Every area of a trapezoid sheet is free to print and free to download as a PDF. There is no account to make, no email to hand over and no limit on how many you take.

Yes. The answer key prints on a second page, and you can choose whether it shows each question beside its answer or just the answers in a list.

Yes. Print straight from the page, or download the PDF and print that. The sheet is laid out for paper rather than squeezed off a screen, so there is room to work under each question, and the answer key comes out on its own page.

Geometry is usually taken around 9th or 10th grade, though schools vary and plenty of students meet it earlier or later. Pick the difficulty rather than the grade: the easy level suits a first lesson on it, the hard level suits review before a test.

Yes, as many as you like. The questions are built fresh each time rather than picked from a fixed set of files, so pressing Generate gives a new sheet. That is what you want for a second class, a retake, or two students sitting next to each other.

That is the closest comparison, and Kuta Software is good software. It is also paid software you install on a computer. These worksheets run in a browser tab for free, with no account and nothing to install. Like Kuta, the area of a trapezoid questions are generated when you ask for them rather than pulled from a fixed set of files, so two classes never get the same sheet, and the answer key comes with it.

Yes. There are two levels, and you can tick more than one for a sheet that mixes them, in which case the questions come out easiest first. The harder levels are not just larger numbers: they ask for something the easy ones do not.

Using a slanted side as the height. The height is the perpendicular distance between the two parallel sides, not the length of the leg joining them.