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  2. Central angle - Wikipedia

    en.wikipedia.org/wiki/Central_angle

    A central angle is an angle whose apex (vertex) is the center O of a circle and whose legs (sides) are radii intersecting the circle in two distinct points A and B. Central angles are subtended by an arc between those two points, and the arc length is the central angle of a circle of radius one (measured in radians). [1] The central angle is ...

  3. Degree of curvature - Wikipedia

    en.wikipedia.org/wiki/Degree_of_curvature

    The degree of curvature is defined as the central angle to the ends of an agreed length of either an arc or a chord; [1] various lengths are commonly used in different areas of practice. This angle is also the change in forward direction as that portion of the curve is traveled.

  4. Inscribed angle - Wikipedia

    en.wikipedia.org/wiki/Inscribed_angle

    Draw an angle whose vertex is point V and whose sides pass through points A, B. Draw line OA. Angle ∠BOA is a central angle; call it θ. Lines OV and OA are both radii of the circle, so they have equal lengths. Therefore, triangle VOA is isosceles, so angle ∠BVA (the inscribed angle) and angle ∠VAO are equal; let each of them be denoted ...

  5. Great-circle distance - Wikipedia

    en.wikipedia.org/wiki/Great-circle_distance

    The central angle between the two points can be determined from the chord length. The great circle distance is proportional to the central angle. The great circle chord length, , may be calculated as follows for the corresponding unit sphere, by means of Cartesian subtraction:

  6. Circular segment - Wikipedia

    en.wikipedia.org/wiki/Circular_segment

    What can be stated is that as the central angle gets smaller (or alternately the radius gets larger), the area a rapidly and asymptotically approaches . If θ ≪ 1 {\displaystyle \theta \ll 1} , a = 2 3 c ⋅ h {\displaystyle a={\tfrac {2}{3}}c\cdot h} is a substantially good approximation.

  7. A top Fed official leans toward December rate cut but says it ...

    www.aol.com/top-fed-official-leans-toward...

    A top Federal Reserve official said Monday that he is leaning toward supporting an interest rate cut when the Fed meets in two weeks but that evidence of persistent inflation before then could ...

  8. Illinois homeschoolers worry Trump tax credit could lead to ...

    www.aol.com/illinois-homeschoolers-worry-trump...

    (The Center Square) – Homeschool groups have concerns about President-elect Donald Trump’s proposed tax credit as Illinois lawmakers look at regulating the practice. Trump, in a video posted ...

  9. Circle - Wikipedia

    en.wikipedia.org/wiki/Circle

    The circular arc is said to subtend the angle, known as the central angle, at the centre of the circle. The angle subtended by a complete circle at its centre is a complete angle, which measures 2 π radians, 360 degrees, or one turn.