Pythagorean Theorem Calculator › Legs 5 and 10

Hypotenuse of 5 and 10

Hypotenuse = √125 ≈ 11.18034

For a right triangle with legs 5 and 10, the hypotenuse c satisfies a² + b² = c²:

5² + 10² = 25 + 100 = 125, so c = √125 ≈ 11.18034 (5√5).

Open the full Pythagorean Theorem Calculator →

Other triangles with leg 5

5 & 1 · 5 & 2 · 5 & 3 · 5 & 4 · 5 & 5 · 5 & 6 · 5 & 7 · 5 & 8 · 5 & 9 · 5 & 11 · 5 & 12

Frequently asked questions

What is the hypotenuse of a triangle with legs 5 and 10?

It is √125 ≈ 11.18034 (or 5√5 in simplified radical form). Using a² + b² = c²: 5² + 10² = 125.

Is 5, 10, … a Pythagorean triple?

No. The hypotenuse √125 is not a whole number, so 5 and 10 do not form a Pythagorean triple with an integer hypotenuse.