About this pythagorean theorem calculator
In a right triangle the square of the hypotenuse equals the sum of the squares of the legs: a² + b² = c². Legs 3 and 4 give a hypotenuse of 5; a hypotenuse of 13 with a leg of 5 leaves the other leg at 12.
a²+b²
Pythagorean Theorem Calculator
Details
How to use Pythagorean Theorem Calculator
What the tool does, how to run it, and what to expect from the result.
At a glance
Who Pythagorean Theorem Calculator is for
A quick way to understand who this helps, what it solves, and where it connects next.
Best fit
Students, teachers and anyone checking a calculation.
Ideal for
Using the pythagorean theorem calculator without installing anything or signing up.
FAQ
Common questions
Short answers for the questions people usually have before trying a utility like this.
How do I find the hypotenuse?
c = √(a² + b²). For legs 6 and 8, c = √100 = 10.
How do I find a missing leg?
a = √(c² − b²). The hypotenuse must be the longest side, or there is no such triangle.
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