Circle Vocab
Presentation
•
Mathematics
•
9th Grade
•
Medium
+1
Standards-aligned
Gina Holdvogt
Used 20+ times
FREE Resource
8 Slides • 35 Questions
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Circle Vocab
Today, you are going explore new circle vocabulary and review old vocabulary.
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Review of the Basics
Circle - A set of points equidistant from a point
Radius - The distance from the edge of the circle to the center of the circle
Diameter - The distance from one edge of the circle of to the other edge through the center
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New Vocab on Lines & Segments
Chord - A line segment whose endpoints are on a circle
Secant - A line that intersects a circle in two points
Tangent - A line that intersects a circle in exactly one point.
Point of Tangency - The point where a tangent line touches the circle
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Multiple Choice
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Multiple Select
Identify the chords in this image.
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Multiple Select
Identify the secants in this image.
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Multiple Select
Identify the tangents in this image
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Multiple Choice
What is the point of tangency?
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Arc & Angle Review
Central Angle - An angle whose vertex is at the center of the circle
Minor Arc - Points that lie on the interior of the central angle with a measure less than 180 degrees
Major Arc - The remaining points of the circle that do not lie on the minor arc
Semi Circle - An Arc measuring 180 degrees
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
The bolded portion of the circle is a.......
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Multiple Choice
The bolded portion of the circle is a.......
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Arc Review Continued
- Arc Measure - The number of degrees covered by an arc
- Circumference - The perimeter of a circle
- Arc Length - The length of an arc along its circumference
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Multiple Choice
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Multiple Select
Choose all of the correct answers.
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Multiple Select
Choose all of the correct answers.
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New Arc Vocab
Recall: A central angle is an angle whose vertex is in the center of the circle
Inscribed angles are created by two chords meeting ON the perimeter of the circle.
Intercepted arc the portion of the circumference between the line segments of either the central angle or inscribed angle
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What else can be inscribed?
Shapes can be inscribed. This means that a shape is completely inside a circle with its vertices on the circumference of the circle.
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Multiple Choice
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Multiple Choice
Circle Vocab
Today, you are going explore new circle vocabulary and review old vocabulary.
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