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Geometric meaning. In elementary plane geometry, the power of a point is a real number that reflects the relative distance of a given point from a given circle. It was introduced by Jakob Steiner in 1826. [1] Specifically, the power of a point with respect to a circle with center and radius is defined by. If is outside the circle, then ,
Map Radius Calculator. You can draw multiple circles, distances, areas or elevations, import/export data save and edit them later with a larger map! Draw a Radius around a map location. Draw a radius circle around a location in Google Maps to show a distance from that point in all directions.
Use this tool to draw a circle by entering its radius along with an address. You can also click a point on the map to place a circle at that spot. You can adjust the placement of the circle by dragging it to a different location.
Physically, the centripetal force \(F_c\), as given by Equation (\ref{eq:8.28}), is what it takes to bend the trajectory so as to keep it precisely on an arc of a circle of radius \(R\) and with constant speed \(v\).
The locus of points having power with regard to a fixed circle of radius is a concentric circle of radius. The chordal theorem states that the locus of points having equal power with respect to two given nonconcentric circles is a line called the radical line (or chordal; Dörrie 1965).
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5 dni temu · To find the central angle of a sector of a circle, you can invert the formula for its area: A = r² · α/2, where: r — The radius; and; α — The central angle in radians. The formula for α is then: α = 2 · A/r². To find the angle in degrees, multiply the result by 180°/π.
