This gives an excellent set of step by step instructions on bisecting an angle including a JavaSketchpad for interaction.
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To bisect a given angle.
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An excellent set of step by step isntructions for copying an angle with a JavaSketchpad interactive product.
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To construct an angle equal to a given angle.
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Identify the missing angle measurement in each set of supplementary angles. Answers included.
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Math-Drills.com
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Definition of a subtended angle - the angle created by an object at a given external point
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Math Open Reference
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Similar triangles - all three sides in same proportion. SSS
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Math Open Reference
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Similar triangles - two sides in same proportion, included angle the same. SAS
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Math Open Reference
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Definition of a segment of a circle.
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Math Open Reference
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Definition and properties of a secant
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Math Open Reference
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Definition and properties of scalene triangles
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Math Open Reference
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A complex figure has some hidden triangles
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Math Open Reference
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