Difference between major and minor arcs. How they can be ambiguous.
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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.
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Math Open Reference
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Shows how a central angle can intercept or 'cut off' an arc
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Math Open Reference
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Definition and properties of an arc
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Math Open Reference
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Formulas related to arcs of a circle.
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Ask Dr. Math
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This tutorial studies circles from the basics to the arcs and chords. Everything with circles is covered with detailed explanations and diagrams.
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Think Quest
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Statements of 3 theorems, with a diagram, and an example for each.
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Regents math
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Discusses the properties of chords and inscribed angles of a circle and their geometric relationships. Includes a brief worksheet.
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Algebra Lab
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An interactive page that lets you drag the arc and it shows the minor arc measure.
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mathWarehouse
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Tangents, secants, their arcs and angles: theorems
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math warehouse
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