How to use it
- Identify the side opposite the right angle as c.
- Use a²+b²=c².
- Take the positive square root for length.
See it in action
Legs 6 and 8: c=√(36+64)=10.
How to verify it
6-8-10 is a scaled 3-4-5 triangle.
Common mistake
The theorem in this form applies to right triangles.