Pythagorean Theorem Calculator › Legs 3 and 4
Hypotenuse of 3 and 4
Hypotenuse = 5
For a right triangle with legs 3 and 4, the hypotenuse c satisfies a² + b² = c²:
3² + 4² = 9 + 16 = 25, so c = √25 = 5.
Other triangles with leg 3
3 & 1 · 3 & 2 · 3 & 3 · 3 & 5 · 3 & 6 · 3 & 7 · 3 & 8 · 3 & 9 · 3 & 10 · 3 & 11 · 3 & 12
Frequently asked questions
What is the hypotenuse of a triangle with legs 3 and 4?
It is exactly 5. Using a² + b² = c²: 3² + 4² = 25, and √25 = 5.
Is 3, 4, 5 a Pythagorean triple?
Yes. 3, 4, and 5 are all whole numbers satisfying 3² + 4² = 5², so they form a Pythagorean triple.