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Geometry

Pythagorean theorem

Pythagorean theorem: Hypotenuse = √(a² + b²); right triangles only

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How it works

Hypotenuse = √(a² + b²); right triangles only

Input definitions

Perpendicular side a
Enter the value in the labeled unit.
Perpendicular side b
Enter the value in the labeled unit.

A worked example

Perpendicular side a
3
Perpendicular side b
4
5

Assumptions & limits

Uses the stated input units. Results are rounded for display; keep additional precision for subsequent calculations.

Sources & review

Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.

Method updated 2026-10-17. Content checked against the stated method and examples. Our verification approach.

Common questions

Can I check the result before using it?

Compare the worked example with your inputs and use the stated method: Hypotenuse = √(a² + b²); right triangles only. Confirm input units and boundary choices before relying on the result.

How does the Pythagorean theorem tool work?

Hypotenuse = √(a² + b²); right triangles only.

What are the assumptions and limits of Pythagorean theorem?

Uses the stated input units. Results are rounded for display; keep additional precision for subsequent calculations.

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