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# What is a circle in algebra? What is a circle in algebra? A circle is all the points that are the same distance, r – called the radius, from a point, (h,k) – called the center. In other words, if (x,y) is any point that is on the circle then it has a distance of r from the center, (h,k) . If we use the distance formula on these two points we would get, r=√(x−h)2+(y−k)2.

What is a circle in math definition? A circle is a plane figure bounded by one curved line, and such that all straight lines drawn from a certain point within it to the bounding line, are equal. The bounding line is called its circumference and the point, its centre.

What is the algebraic equation for a circle? We know that the general equation for a circle is ( x – h )^2 + ( y – k )^2 = r^2, where ( h, k ) is the center and r is the radius.

What exactly is a circle? Circle is the locus of points equidistant from a given point, the center of the circle. A circle is a plane figure contained by one line, which is called circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.

## What is a circle in algebra? – Related Questions

### What is a circle function?

A central circle is a circle with trilinear equation. such that is a triangle center and is a homogeneous function that is symmetric in the side lengths , , and. of the reference triangle. In this work, the term “circle function” is used to refer to the function corresponding to .

### What are the types of circle?

Types of Circle

The following figure shows tangent circle. All the three circles intersect each other at common point P. Concentric Circle: Two or more than two circles that have the same center are called the concentric circle. These circles are of different radii.

### How do you describe a circle shape?

A circle is a round shaped figure that has no corners or edges. In geometry, a circle can be defined as a closed, two-dimensional curved shape.

### What is standard form of a circle?

The center-radius form of the circle equation is in the format (x – h)2 + (y – k)2 = r2, with the center being at the point (h, k) and the radius being “r”. This form of the equation is helpful, since you can easily find the center and the radius.

### What is a formula of cylinder?

The formula for the volume of a cylinder is V=Bh or V=πr2h . The radius of the cylinder is 8 cm and the height is 15 cm. Therefore, the volume of the cylinder is about 3016 cubic centimeters.

### Is there a perfect circle?

Perfect circles do not exist in nature, but you can see some close approximations around CMU’s main campus in Pittsburgh.

### How do we name a circle?

A circle is named by its center. Thus, the circle to the right is called circle A since its center is at point A. Some real world examples of a circle are a wheel, a dinner plate and (the surface of) a coin. The distance across a circle through the center is called the diameter.

### Is circle a function?

If you are looking at a function that describes a set of points in Cartesian space by mapping each x-coordinate to a y-coordinate, then a circle cannot be described by a function because it fails what is known in High School as the vertical line test. A function, by definition, has a unique output for every input.

### What is circle give example?

The definition of a circle is a curved line that is the same distance from the center all the way around and connects at the point where it began. An example of circle is a round plate. An example of circle is the earth.

### How many parts are in the circle?

The degree measure of the circumference of the circle is always 360°. A circle divides the plane on which lies into three parts.

### What part of the circle does R stand for?

The symbol “R” in a circle signifies that a trademark has been registered in the U.S. Patent and Trademark Office for the goods inside the package.

### What is circle and its types?

In Maths or Geometry, a circle is a special kind of ellipse in which the eccentricity is zero and the two foci are coincident. Diameter is the line which divides the circle into two equal parts and is also equal to twice of the radius. A circle is a basic 2D shape which is measured in terms of its radius.

### What is the center of the circle?

The center of a circle is the point equidistant from the points on the edge. Similarly the center of a sphere is the point equidistant from the points on the surface, and the center of a line segment is the midpoint of the two ends.

### How do you find the radius of a circle with an equation?

The center-radius form of the circle equation is in the format (x – h)2 + (y – k)2 = r2, with the center being at the point (h, k) and the radius being “r”. This form of the equation is helpful, since you can easily find the center and the radius.

### What is the example of cylinder?

Cylinder is a three-dimensional solid figure, in geometry, which has two parallel circular bases joined by a curved surface, at a particular distance from the center. Toilet paper rolls, plastic cold drink cans are real-life examples of cylinders.

### What is called cylinder?

A cylinder is defined as a surface consisting of all the points on all the lines which are parallel to a given line and which pass through a fixed plane curve in a plane not parallel to the given line. Such cylinders have, at times, been referred to as generalized cylinders .

### What is the shape of base of cylinder?

The base area of the cylinder is actually an area of a circle since the base of the cylinder is a circle. A cylinder is a three-dimensional solid figure which consists of two circular bases connected with a curved face.

### What is the longest chord?

Hence, Diameter is the longest chord.

### What is a circle within a circle called?

Concentric circles are circles with a common center. The region between two concentric circles of different radii is called an annulus.

### What is a better real life example of a circle?

Some of the real-world examples of circles are: The wheel of a bicycle. Coin. Dinner plate.

### Who discovered the circle?

The greeks considered the Egyptians as the inventors of geometry. The scribe Ahmes, the author of the Rhind papyrus, gives a rule for determining the area of a circle which corresponds to π = 256 /81 or approximately 3. 16. The first theorems relating to circles are attributed to Thales around 650 BC.