 ## How To Find The Center and Radius of a Circle

The standard equation of a circle with center at (x1,y1) ( x 1, y 1) and radius r is (x−x1)2 +(y−y1)2 = r2 ( x − x 1) 2 + ( y − y 1) 2 = r 2, where (x, y) is an arbitrary point on the circumference of the circle. The distance between this point and
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## Equation Of A Circle

Given, Centre = (a, b) = (2, 3) Radius = r = 1. Standard form of circle equation is (x – a) 2 + (y – b) 2 = r 2. Substituting the values of centre and radius, (x – 2) 2 + (y – 3) 2 = 1 2. x 2 – 4x + 4 + y 2

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## Find the equation of a circle using the centre and radius

Center of Circle Formula. If the center is at (a, b) and radius is ‘r’ then the center of the circle formula is as follows: ( x − a) 2 + ( y − b) 2 = r 2. Here (x,y) is an arbitrary point on the

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## How to find the center and radius of a circle from its equation

Step 1: Write the center-radius equation for the circle. Center: (0, 0) Given. Radius = 8 Given (x − h) 2 + (y − k) 2 = r 2 Original (x − 0) 2 + (y − 0) 2 = 8 2 Sub. x 2 + y 2 = 64 Simplify. Step 2: Determine the x-coordinate associated with a y

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## Center of Circle

The center of circle formula is also known as the general equation of a circle. In a circle, if the coordinates of the center are (h,k), r is the radius, and (x,y) is any point on the circle, then the

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## Finding the Center and Radius of a Circle

Given the center of circle (x1, y1) and its radius r, find the equation of the circle having center (x1, y1) and having radius r. Examples: Input : x1 = 2, y1 = -3, r = 8. Output : x^2 +

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