Printable Right, Acute, or Obtuse Worksheet
This two-page Letter PDF is for students practicing the Pythagorean theorem and checking whether a triangle is right, acute, or obtuse. It includes a Name and Date line, then a table with Problem and Answer columns. Each problem gives three side lengths, such as 5, 12, 13; 6, 7, 9; 4, 5, 8; 7, 8, 10; 9, 12, 16; and 20, 21, 29. Students compare a² + b² with c² and write the result.
Free printable · PDF
- 2 pages
- US Letter — choose “Fit to page” for A4
- PDF, 102 KB
Free for personal, family and classroom use.
Use the first page for independent work, review, or quick practice after a lesson. The second page is an answer key that lists each problem with the correct label: right, acute, or obtuse. Print both pages together, or use the worksheet page first and check answers after students finish.
Good for
- Pythagorean theorem practice
- Triangle type review
- Independent math homework
Tip: Print double-sided to keep the worksheet and answer key together.
5 files · PDF, DOCX
Get every sheet: Pythagorean Theorem Worksheets
This sheet plus 4 more in one download, with the editable Word files. Printable Pythagorean theorem practice: find-the-hypotenuse and find-the-leg worksheets, a word-problem set, a right-triangle checker worksheet and a triples reference — all with answer keys.
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