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- 1. Multiple Choice
The set of all points in a plane that are equidistant from a given point.
Circle
Semicircle
Half Circle
Point
- 2. Multiple Choice
The point in the middle. The point is used to name the circle.
Center of a Circle
Point
Middle Dot
Segment
- 3. Multiple Choice
The distance from the center of a circle to a point on the circle. Endpoints are the center and a point on the circle.
Radius
Circumference
Diameter
Segment Length
- 4. Multiple Choice
Distance across a circle, through the center of the circle.
Diameter
Radius
Chord
Segment
- 5. Multiple Choice
A segment whose endpoints are points on the circle.
Chord
Tangent
Secant
Angle
- 6. Multiple Choice
A segment that crosses the outside of the circle at two or more points and continues past the circle.
Secant
Tangent
Chord
Segment
- 7. Multiple Choice
A segment that touches a circle at exactly one point.
Tangent
Segment
Secant
Chord
- 8. Multiple Choice
The distance around the circle (perimeter)
Circumference
Area
Circle
Length
- 9. Multiple Choice
A segment of the circumference of a circle.
Arc
Tangent
Major Arc
Tangent
- 10. Multiple Choice
An arc whose endpoints of the circles diameter (half the circle).
Semicircle
Moon
Arc
Circumference
- 11. Multiple Choice
An arc that measures less than 180 degrees
Minor Arc
Major Arc
Arc
Angle
- 12. Multiple Choice
An arc that measures between 180 and 360 degrees.
Major Arc
Minor Arc
Arc
Semicircle
- 13. Multiple Choice
An angle whose vertex is the at the center of a circle.
Central Angle
Inscribed Angle
Obtuse Angle
Acute Angle
- 14. Multiple Choice
An angle whose vertex lies of the circle and both endpoints lie across the circle.
Inscribed Angle
Central Angle
Angle
Arc
- 15. Multiple Choice
The portion inside of the circle
Area
Circumference
Angle
Arc
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