About this printable
Practice trapezoid area with eight focused questions and a separate printable answer key. Each exercise has space for a written method, and the answers also appear as readable text below. Use the practice page first, then compare methods as well as final answers. The paired images stay together in this article so the solution can be found without searching for another post.
How to use it
Add the lengths of the parallel bases, multiply by the perpendicular height and divide by two. Bases of 6 cm and 10 cm with height 4 cm give 32 square centimeters. The formula averages the two bases before applying the height.
Check and adapt
Check that you used the parallel sides as the bases and included the division by two. All lengths in a prompt are in centimeters, so answers use square centimeters. The word trapezium is used for this shape in some regions; this page uses trapezoid.
Answers in text
- Bases 3, 7 cm; height 2 cm: 10 cm².
- Bases 4, 8 cm; height 3 cm: 18 cm².
- Bases 5, 9 cm; height 4 cm: 28 cm².
- Bases 6, 10 cm; height 5 cm: 40 cm².
- Bases 7, 11 cm; height 6 cm: 54 cm².
- Bases 8, 12 cm; height 7 cm: 70 cm².
- Bases 9, 13 cm; height 8 cm: 88 cm².
- Bases 10, 14 cm; height 9 cm: 108 cm².
Printable answer key
Download and printing instructions
Use Download image to save the original high-resolution PNG. To make a PDF, choose US Letter or A4 below the image and select Download PDF. The website creates that file in your browser; no separate PDF attachment is needed. Match the printer paper setting to your choice, use uniform scaling and check that every edge fits inside the printable area. Print one test copy before making a classroom set. These are flat printable pages, not editable forms. Originals are for personal and classroom use; share the article link rather than redistributing the files.