Pythagorean Theorem Calculator › Legs 1 and 2
Hypotenuse of 1 and 2
Hypotenuse = √5 ≈ 2.236068
For a right triangle with legs 1 and 2, the hypotenuse c satisfies a² + b² = c²:
1² + 2² = 1 + 4 = 5, so c = √5 ≈ 2.236068 (√5).
Other triangles with leg 1
1 & 1 · 1 & 3 · 1 & 4 · 1 & 5 · 1 & 6 · 1 & 7 · 1 & 8 · 1 & 9 · 1 & 10 · 1 & 11 · 1 & 12
Frequently asked questions
What is the hypotenuse of a triangle with legs 1 and 2?
It is √5 ≈ 2.236068 (or √5 in simplified radical form). Using a² + b² = c²: 1² + 2² = 5.
Is 1, 2, … a Pythagorean triple?
No. The hypotenuse √5 is not a whole number, so 1 and 2 do not form a Pythagorean triple with an integer hypotenuse.