# Circle formulas geometry

The equation of circle formula is given as, (x−x1)2 +(y −y1)2 = r2 ( x − x 1) 2 + ( y − y 1) 2 = r 2. where, (x1,y1) ( x 1, y 1) is the center of the circle with radius r and (x, y) is an arbitrary point on the circumference of the circle. Derivation of

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## The geometry of a circle

A circle is a spherical shape with no corners or edges. A circle is a closed, two-dimensional curved shape that can be specified in geometry. Every point on the circle is equidistant from

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## Circle formula

Home List of all formulas of the site; Geometry. Area of plane shapes. Area of a triangle; Area of a right triangle; Heron's formula for area; Area of an isosceles triangle; Height of a segment of

## Circle Formulas

What are the Formulas of Circles? Formulas related to circles are: Diameter of a Circle ⇒ D = 2 × r units. Circumference ⇒ C = 2 × π × r units. Area ⇒ A = π × r 2 square units. What is a Half-Circle called in Geometry? In geometry, a

## What are the Circle Formulas? Examples

If the area of the circle, A, is known: Area formula of a circle. The area of a circle is the plane region bounded by the circle's circumference. It can be found using the formula. A = πr 2. where r is the circle's radius. If using the diameter, d, of

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