Hypotenuse Calculator
Calculate the longest side of a right triangle instantly using Pythagorean theorem. Essential for geometry, construction, and various STEM applications.
FAQs
What is hypotenuse?
The hypotenuse is the longest side in a right-angled triangle, opposite the right angle. It's calculated using the Pythagorean theorem: c = √(a² + b²).
Can hypotenuse be negative?
No, hypotenuse length cannot be negative as it represents a physical distance. The calculator shows absolute value of the square root result.
What units should I use?
Use any consistent units (cm, inches, meters). The calculator works with all units as long as both sides use the same measurement.
Does it work for non-right triangles?
No, Pythagorean theorem only works for right-angled triangles. For other triangles, use Law of Cosines instead.
How accurate are results?
Results show 4 decimal places for precision. Underlying calculation uses JavaScript's Math.sqrt() function for maximum accuracy.
Can I calculate one side from hypotenuse?
Yes! Rearrange formula: a = √(c² - b²). Enter hypotenuse as one side and remaining side normally.
Why see NaN error?
"Not a Number" error appears with invalid inputs. Ensure both fields contain positive numbers and try again.
Applications in real life?
Used in construction, navigation, computer graphics, and engineering for calculating distances and diagonal measurements.
Historical significance?
Ancient Babylonians and Indians used Pythagorean triples before Pythagoras. Essential in development of geometry and mathematics.
Mobile friendly?
Yes! Responsive design works on all devices. Bookmark for quick access on construction sites or classrooms.