math vocab

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Last updated 6:58 PM on 3/16/25
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12 Terms

1
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What is the center of a circle?
Point A – The exact middle of the circle.
2
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What is a chord in relation to a circle?
CB – A line segment connecting two points on the circle without passing through the center.
3
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What defines a diameter of a circle?
FG – A chord that passes through the center, the longest possible chord.
4
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What is the radius of a circle?
AI – A line segment from the center to a point on the circle.
5
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What is a major arc?
KJ – An arc that measures more than 180°.
6
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What is a minor arc?
IJ – An arc that measures less than 180°.
7
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What is a semicircle?
KRJ – An arc that measures exactly 180° (half the circle).
8
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What is a tangent line?
PK – A line that touches the circle at exactly one point.
9
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What is a secant line?
GI – A line that intersects the circle at two points.
10
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What is the point of tangency?
Point K – The point where the tangent line meets the circle.
11
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What is an inscribed angle?
∠IAK – An angle formed by two chords meeting at a point on the circle.
12
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What is a central angle?
∠IBC – An angle with its vertex at the center of the circle.