Pythagorean Theorem Calculator › Legs 2 and 4
Hypotenuse of 2 and 4
Hypotenuse = √20 ≈ 4.472136
For a right triangle with legs 2 and 4, the hypotenuse c satisfies a² + b² = c²:
2² + 4² = 4 + 16 = 20, so c = √20 ≈ 4.472136 (2√5).
Other triangles with leg 2
2 & 1 · 2 & 2 · 2 & 3 · 2 & 5 · 2 & 6 · 2 & 7 · 2 & 8 · 2 & 9 · 2 & 10 · 2 & 11 · 2 & 12
Frequently asked questions
What is the hypotenuse of a triangle with legs 2 and 4?
It is √20 ≈ 4.472136 (or 2√5 in simplified radical form). Using a² + b² = c²: 2² + 4² = 20.
Is 2, 4, … a Pythagorean triple?
No. The hypotenuse √20 is not a whole number, so 2 and 4 do not form a Pythagorean triple with an integer hypotenuse.