Math & Science
Triangle Calculator
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Calculate the hypotenuse, area, and perimeter of a right triangle using the Pythagorean theorem. Free, instant results in your browser — no account required.
Slik bruker du dette verktøyet
- Enter the two legs of the right triangle.
- The hypotenuse, area, and perimeter are computed instantly.
- Read all three results derived from the Pythagorean theorem.
Right Triangle Results
Hypotenuse (c)
5
Area
6
Perimeter
12
Formula: c = √(a² + b²) = √(3² + 4²) = 5
Ofte stilte spørsmål
- What does this calculate?
- For a right triangle, given the two legs it finds the hypotenuse via a² + b² = c², the area as ½ × base × height, and the perimeter as the sum of all three sides.
- Does it work for non-right triangles?
- No. This tool assumes a right triangle. For a general triangle you would need angles or the law of cosines.
- How is the area derived?
- For a right triangle the two legs are the base and height, so the area is simply half their product.
- Is my input sent to a server?
- No. The Pythagorean and area calculations run in your browser; the side lengths are never transmitted.