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Questions and Answers
What is a central angle?
What is a central angle?
What is a chord in a circle?
What is a chord in a circle?
What is the definition of a circle?
What is the definition of a circle?
The locus of all points in a plane equidistant from a given point called the center of the circle.
What does circumference refer to?
What does circumference refer to?
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What does it mean for a circle to be circumscribed about a polygon?
What does it mean for a circle to be circumscribed about a polygon?
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What is a diameter in a circle?
What is a diameter in a circle?
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What is the definition of an inscribed polygon?
What is the definition of an inscribed polygon?
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What does intercepted mean in terms of an angle and an arc?
What does intercepted mean in terms of an angle and an arc?
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What is a major arc?
What is a major arc?
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What is a minor arc?
What is a minor arc?
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What is π (pi)?
What is π (pi)?
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What is a point of tangency?
What is a point of tangency?
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What is a radius in a circle?
What is a radius in a circle?
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What is a secant?
What is a secant?
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What is a semicircle?
What is a semicircle?
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What is a tangent?
What is a tangent?
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Study Notes
Central Angle
- Defined as an angle that intersects a circle at two points with its vertex located at the center.
Chord
- A chord is a segment whose endpoints both lie on the circumference of a circle.
Circle
- A circle consists of all points that are equidistant from a central point called the center.
Circumference
- Circumference refers to the total distance around the edge of a circle.
Circumscribed
- A circle is described as circumscribed around a polygon if it encloses all the vertices of the polygon.
Diameter
- The diameter is a specific type of chord that passes through the center of a circle.
Inscribed
- A polygon is inscribed in a circle if every vertex of the polygon touches the circumference of the circle.
Intercepted Arc
- An angle is said to intercept an arc if its endpoints are on the angle and all other points of the arc are located inside the circle.
Major Arc
- A major arc is any arc of a circle that measures more than 180 degrees.
Minor Arc
- Conversely, a minor arc measures less than 180 degrees within a circle.
Pi
- Pi (π) is an irrational number that is the ratio of the circumference of a circle to its diameter.
Point of Tangency
- The point of tangency is where a tangent line touches a circle at exactly one point.
Radius
- A radius is a segment connecting the center of a circle to any point on its circumference.
Secant
- A secant is a line that crosses a circle at precisely two points.
Semicircle
- A semicircle is an arc that measures exactly 180 degrees.
Tangent
- A tangent line intersects a circle at only one point, creating a critical relationship to the circle's geometry.
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Description
Test your knowledge on key geometric concepts in Chapter 10 with these flashcards. Cover fundamental definitions such as central angle, chord, circle, and circumference. Ideal for students looking to enhance their understanding of geometry.
