Geometry
Equation of a Circle Calculator
Radius and expanded equation from center (h, k) and a point (x, y) on the circle.
Radius r
Equation
Amortization schedule
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This free Equation of a Circle Calculator covers Radius and expanded equation from center (h, k) and a point (x, y) on the circle.
r² = (x−h)² + (y−k)². Other geometry tools are linked below.
Equation of a Circle Calculator — how it works
Radius and expanded equation from center (h, k) and a point (x, y) on the circle. Typical inputs are Center h, Center k, Point x and Point y. How it works beside the form states the identity the Equation of a Circle Calculator applies.
FAQ
How do I use the Equation of a Circle Calculator?
Open the Equation of a Circle Calculator, fill Center h, Center k, Point x and Point y, and read the result. r² = (x−h)² + (y−k)².
What formula does the Equation of a Circle Calculator use?
The Equation of a Circle Calculator uses the identity in How it works. In words: r² = (x−h)² + (y−k)².
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