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  1. Dictionary
    circle
    /ˈsəːkl/

    noun

    • 1. a round plane figure whose boundary (the circumference) consists of points equidistant from a fixed point (the centre): "draw a circle with a compass"
    • 2. a group of people with a shared profession, interests, or acquaintances: "she did not normally move in such exalted circles" Similar groupsetringcompany

    verb

    More definitions, origin and scrabble points

  2. Jun 24, 2024 · A circle is the set of all those point in a plane whose distance from a fixed point remains constant. The fixed point is called the centre of the circle and the constant distance is known as the radius of the circle. Full moon is the example of a circle.

  3. Jun 22, 2024 · In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) [1] [2] are real functions which relate an angle of a right-angled triangle to ratios of two side lengths.

  4. Jun 21, 2024 · Circle: A two-dimensional geometric figure, consisting of the set of all those points in a plane that are equally distant from another point. Radius: A line segment between any point on the circumference of a circle and its center. Diameter: Two times the radius of a circle. Area: The interior surface of a circle, given by \( A = \pi ...

  5. en.wikipedia.org › wiki › PiPi - Wikipedia

    Jun 25, 2024 · The number π ( / paɪ /; spelled out as " pi ") is a mathematical constant that is the ratio of a circle 's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics.

  6. Jun 25, 2024 · Pi, in mathematics, is the ratio of the circumference of a circle to its diameter. Because pi is irrational (not equal to the ratio of any two whole numbers), its digits do not repeat, and an approximation such as 3.14 or 22/7 is often used for everyday calculations.

  7. Circular (radian) measure of an angle: The circular measure of an angle is the number of radians it contains. Thus the circular (radian) measure of a right angle is π/2. If an angle is given without mentioning units, it is assumed to be in radians.

  8. Jun 24, 2024 · A detailed explanation of segment and sector of a circle. We explain the segment and sector of a circle by considering the diagram. Complete step-by-step answer: (1) Segment of a circle: A segment of a circle is defined as a region bounded by the chord and the corresponding arc lying between the endpoints of the chord.

  9. Jun 24, 2024 · The unit of circular system is based on the constant relation that exists between the circumference of a circle and the radius of that circle. Let us take three concentric circles. From the smallest circle let us cut off an arc AD equal in length to the radius of the circle.

  10. Jun 23, 2024 · Motion of a particle in a horizontal circle would be the most basic version of Uniform Circular Motion, since the force of gravitation doesn't affect the particle's trajectory.

  11. Jun 22, 2024 · Orthogonal Circles. Orthogonal circles are orthogonal curves, i.e., they cut one another at right angles. By the Pythagorean theorem, two circles of radii \(r_1\) and \(r_2\) whose centers are a distance \(d\) apart are orthogonal if \[r_1^2+r_2^2=d^2.