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Circle Radius from General Equation

Calculate radius using the circle radius from general equation formula.

Radius: -
Visual representation

Circle Radius from General Equation diagram

The diagram updates with your entries and is illustrative, not necessarily drawn to scale.

Calculation explained

How this result was calculated

The formula, your substituted values, and the evaluated result are shown below.

Reference: Formulae and Tables, State Examinations Commission (2014), page 20.
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How the Circle Radius from General Equation works

This calculator applies the formula given in Formulae and Tables, State Examinations Commission (2014), page 20. Enter values in consistent units.

Formula and inputs

Math.sqrt(g × g+f × f-c)

Inputs: Coefficient g, Coefficient f, Constant c.

Using the result

The result is rounded to 4 decimal places. Check units, assumptions and significant figures before using the answer.

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