circle math definition
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- A circle is the locus of all points a fixed distance from a given (center) point. This definition assumes the plane is composed of an infinite number of points and we select only those that are a fixed distance from the center. (See locus definition .).
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The Geometry of Circles The radius of a circle is the distance from the center of the circle to the outside edge. The diameter of a circle: The diameter of a circle is longest distance across a circle. (The diameter cuts through the center of the circle. This is what makes it the longest distance.) The circumference of a circle (the perimeter of a circle): The circumference of a circle is the perimeter -- the distance around the outer edge. Circumference =. where r = the radius of the circle.
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Circles Circles - central angles. A central angle of a circle is an angle where its vertex is the center of the circle and its sides are radius of the circle. In order to measure an arc of a circle we use the size of the central angle that forms the arc.
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circlet circlet - a small circle. circle - ellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed point; he calculated the circumference of the circle.
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Geometry Definitions Circle- The set of points in a plane equidistant from a. given point(the center of the circle). Radius- A segment from the center of the circle to a. point on the circle(the distance from the center to a. point on the circle.) Circumference – distance around the edge of the. circle.
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Weakfish Feeding: Weakfish prey upon small schooling fish such as anchovies and menhaden, and will also eat crabs, shrimp, mollusks and large zooplankton. Once a weakfish sees its prey, it will slowly move toward it, then quickly lunge at it with open jaws. Weakfish are the top carnivore in the Bay’s eelgrass beds.
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Circle graph A graph is a circle graph if and only if it is the overlap graph of a set of intervals on a line. This is a graph in which the vertices correspond to the intervals, and two vertices are connected by an edge if the two intervals overlap, with neither containing the other.
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- The circumference (from Latin circumferentia, meaning carrying around) of a closed curve or circular object is the linear distance around its edge. The circumference of a circle is of special importance in geometry and trigonometry.
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Circle, Its Perimeter and Area Circle, Its Perimeter and Area Circle is the set of points on a fixed distance from a given point; the latter is called the center while that distance is the radius of the circle. The word radius has also another meaning: a line segment from the center to any point on the circle is also called radius.
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- 1 Diameter — a special chord that passes through the centre of the circle. A diameter is a straight line segment from one point on the circumference to another point on the circumference that passes through the centre of the circle.  Segment — part of the circle that is cut off by a chord.
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Space Environment A circle is a closed curved shape that is flat. That is, it exists in two dimensions or on a plane. In a circle, all points on the circle are equally far from the center of the circle. An ellipse is also a closed curved shape that is flat. Instead of having all points the same distance from the center point, though, an ellipse is shaped so that when you add together the distances from two points inside the ellipse (called the foci) they always add up to the same number.
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Circle The distance around a rectangle or a square is as you might remember called the perimeter. The distance around a circle on the other hand is called the circumference (c). A line that is drawn straight through the midpoint of a circle and that has its end points on the circle border is called the diameter (d). Half of the diameter, or the distance from the midpoint to the circle border, is called the radius of the circle (r). The circumference of a circle is found using this formula: Example: Find the circumference of the circle: Video lesson: Find the radius of the circle. 1  Pre-Algebra. 2  Algebra 1. 3  Algebra 2. 4  Geometry. 5  Sat.
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What Is Circle? Circle is the locus of points equidistant from a given point, the center of the circle. The common distance from the center of the circle to its points is called radius. Thus a circle is completely defined by its center (O) and radius (R): C(O, R) = O(R) = {x: dist(O, x) = R}.
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Circle, Its Perimeter and Area All circles are similar. This fact implies that the circumference and area of a circle are functions of its radius: linear function, for the circumference; quadratic function, for the area.ircle, Its Perimeter and Area. Circle is the set of points on a fixed distance from a given point; the latter is called the center while that distance is the radius of the circle. The word radius has also another meaning: a line segment from the center to any point on the circle is also called radius.
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- Radius: a line segment with one endpoint at the center of the circle and the other endpoint on the circle. Check to see what the Maths Dictionary says by clicking on this link, then clicking on the R category, then clicking on the word Radius. Check the Math is Fun website for their definition too.
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Circles Circles: parts of a circle, line symmetry and rotational symmetry. A circle is a continuous shape which has no vertices (corners). Circles have many different parts. All circles will have a centre point and a circumference. All points from the centre of the circle outwards have exactly the same distance.
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- Definition of Circumference. The complete distance around a circle or a closed curve is called its Circumference. 1  The formula for the circumference of a circle, C = 2 × π × r = π &times d, where `r` is the radius and `d` is the diameter of the circle.π =22/7 = 3.141.
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What Is Circle? where (x 0, y 0) is the center of the circle and R its radius. The polar coordinates of a circle centered at the origin are particularly simple: r = R. A segment of a line joining two points on a circle is called a chord; a piece of a circle between two points is an arc.
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radius diameter - the length of a straight line passing through the center of a circle and connecting two points on the circumference. 2. diameter - a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface) straight line - a line traced by a point traveling in a constant direction; a line of zero curvature; the shortest distance between two points is a straight line.
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Flag of Paraguay  [show article only]hover over links in text for more info Circumference: the length of one circuit along the circle, or the distance around the circle. Diameter: a line segment whose endpoints lie on the circle and which passes through the centre; or the length of such a line segment, which is the largest distance between any two points on the circle. It is a special case of a chord, namely the longest chord, and it is twice the radius.
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- A circle has exactly  one radius, no more and no less. The radius of a circle is the distance from the center of the circle to ANY POINT on the circle.
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- The constant distance from the center of the circle to any point on the circle is called the radius of the circle. Diameter of a circle is the line segment connecting two points on a circle and passing through the center of the circle.
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What Is Circle? The line joining the center of the circle to one of its points is often called the radius-vector of that point, or just one of the radii. Likewise, the word diameter is used in two different, but close meanings. On one hand, diameter is the largest distance between any two points on a circle.
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Equation of a Circle 1 X2 + Y2=4 is a circle with a radius of 2 (since 4 =22)  Remember that a circle is a locus of points. A circle is all of the points that are a fixed distance, known as the radius, from a given point, known as the center of the circle.
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Circle A radius is the distance from the center of the circle to its boundary line. A chord is a line between any two points on the outer line of the circle. A diameter is a chord that passes through the center. It is also the longest chord.
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