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10 Cards in this Set
- Front
- Back
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What are common external tangents?
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They do not intersect the segment connecting the centers.
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What are common internal tangents?
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The intersect the segment connecting the centers.
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What is a common tangent?
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It is a line that is tangent to two circles in the same plane.
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Define the center of a circle.
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It is the central point where radii form a locus of points called a circle.
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What is a tangent?
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It is a line that intersects a circle in exactly one point called the point of tangency.
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What is a point of tangency?
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It is the one point where a line intersects a circle.
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Describe inscribe VS. circumscribed.
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An inscribed polygon is where ALL vertices lie on the circle. A circumscribed polygon CONTAINS all vertices of the polygon.
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Define circumference.
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The distance around the circle. It is a one dimensional measurement.
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What is a secant?
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A line that intersects a circle in exactly 2 points.
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What is a central angle?
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This angle has the center of the circle as its vertex and its sides contain 2 radii of the circle.
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