# What is an endpoint of a circle?

## What is an endpoint of a circle?

A circle is a set of all points in a plane that are all an equal distance from a single point, the center. The distance from a circle’s center to a point on the circle is called the radius of the circle. A radius is a line segment with one endpoint at the center of the circle and the other endpoint on the circle.

### What are endpoints of a diameter?

The diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints are on the circumference of the circle. The given end points of the diameter are (−2,4) and (4,8) .

#### What is circle equation?

The general equation of a circle is (x – h)2 + (y – k)2 = r2, where (h, k) represents the location of the circle’s center, and r represents the length of its radius. Circle A first has the equation of (x – 4)2 + (y + 3)2 = 29.

How do you solve a circle equation?

The formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. If a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.

Where are the endpoints of a circle?

## What is a diameter of a circle?

Circle/Diameter

### How do we find the diameter of a circle?

#### What is the diameter of a circle?

How do you find the diameter of a circle with endpoints?

Equation of a Circle with Endpoints of Diameter. Let A ( x 1, y 1) and B ( x 2, y 2) be the end points of the diameter of the circle as shown in the diagram. Let P ( x, y) be any point of the circle. Connecting the points A and B with the point P makes an angle 90 ∘ between them. First we find the slopes of the lines P A and P B as:

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How to find the equation of a circle through the ends?

Find the equation of a circle through the ends (5, 7) and (1, 3) of its diameter. Also find the centre and radius. The equation of the circle through the ends points of its diameter is (x – x 1) (x – x 2) + (y – y 1) (y – y 2) = 0

## What is the equation form for the center point of a circle?

(x−h)2 +(y−k)2 = r2 ( x – h) 2 + ( y – k) 2 = r 2 is the equation form for a circle with r r radius and (h,k) ( h, k) as the center point. In this case, r = √13 r = 13 and the center point is (1,6) ( 1, 6).

### What is the centre of the circle R2 =?

The centre is the mid point of diameter. (4,8) and (6, − 1) are the end points of radius r. ∴ r2 = (4 −6)2 + (8 + 1)2 = 85 . Equation of the circle is