The meaning of 'adjacent arcs' and how their arc lengths can be added.
Math Open Reference
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Definition and properties of a sector - a pie-shaped part of a circle..
Math Open Reference
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Gives examples of problems with intercepted arc, central angle, and angles inside and outside the circle.
Online Math Learning
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Finding the radius of an arc or segment given its height and width.
Math Open Reference
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Difference between major and minor arcs. How they can be ambiguous.
Math Open Reference
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Definition of arc length and formula to calculate it from the radius and central angle of the arc.
Math Open Reference
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Shows how a central angle can intercept or 'cut off' an arc
Math Open Reference
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Definition and properties of an arc
Math Open Reference
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Discusses the properties of chords and inscribed angles of a circle and their geometric relationships. Includes a brief worksheet.
Algebra Lab
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An interactive page that lets you drag the arc and it shows the minor arc measure.
mathWarehouse
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