Free printable worksheet

Pythagorean theorem worksheet

In a right triangle a² + b² = c², where c is the side opposite the right angle. Finding a leg means subtracting instead of adding. These ten questions mix both directions.

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Ten questions

Print this page, or copy the questions onto paper. Every answer is listed underneath.

Right-triangle legs are 3,4 units.
Right-triangle legs are 9,12 units.
Right-triangle legs are 5,12 units.
Right-triangle legs are 15,36 units.
Right-triangle legs are 8,15 units.
Right-triangle legs are 24,45 units.
Right-triangle legs are 7,24 units.
Right-triangle legs are 21,72 units.
Right-triangle legs are 20,21 units.
Right-triangle legs are 60,63 units.

Show answers

1. 5
2. 15
3. 13
4. 39
5. 17
6. 51
7. 25
8. 75
9. 29
10. 87

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