Arc Length

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10 Terms

1
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Arc of a Circle
The portion of the circumference between two points on the circle.
2
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Central Angle
An angle whose vertex is at the center of the circle and whose sides pass through the circle's circumference points.
3
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Arc Length
The distance along the circle circumference between two points.
4
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Ratio of Central Angle to Whole Circle
The simplified fraction representing the central angle relative to the total angles in a circle (360 degrees).
5
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Arc Length Formula
L = (θ/360) * 2πr, where L is arc length, θ is the central angle, and r is the radius.
6
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Circumference of a Circle
The total distance around a circle, calculated as C = 2Ď€r.
7
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Proportionality of Arc Length and Central Angle
The measure of an arc length is directly proportional to the ratio of its central angle to the entire circle.
8
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Fraction of Circle Circumference
A way to express a part of the circumference as a ratio relative to the whole circumference.
9
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Sector of a Circle
The area bounded by two radii and the arc connecting them.
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Simplest Fraction
A fraction that cannot be reduced any further, representing the lowest form of the ratio.