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Right triangle from legs

Calculate hypotenuse, acute angles and area from two perpendicular legs.

Free

Enter the two positive perpendicular legs using the same length unit. The tool uses the Pythagorean relation for the hypotenuse, half the leg product for area and inverse tangent for the two acute angles.

◈ Local processingFree

How to use

  1. Enter your text, values, or image.
  2. Adjust the options and run the tool.
  3. Copy or download your result.

Worked example

Example input

First leg: 3
Second leg: 4

Example result

{
  "hypotenuse": 5,
  "area": 6,
  "angleOppositeA": 36.8698976458,
  "angleOppositeB": 53.1301023542
}

Limitations and details

The inputs must be the two perpendicular legs, not a leg and the hypotenuse; all lengths must be positive.

Inputs and options

First leg
Number
Second leg
Number

Frequently asked questions

Is this tool free and private?

Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.

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