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Geometry unit 12
geometry terms
17
Mathematics
10th Grade
03/23/2013

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Term
circle
Definition
set of points an equal distance from the center point.
Term
radius
Definition
measure of center point to side of circle
Term
circumference
Definition
set of points on a circle
Term
area
Definition
interior of closed curve.
Term
chord
Definition
a line segment drawn between two points on the circumference of the circle.
Term
diameter
Definition
if a chord goes through the center of the circle.
Term
tangent
Definition
a line that intersects the circumference of the circle at exactly one point
Term
secant
Definition
a line which intersects a circle in two points.
Term
sector
Definition
a piece of a circle
Term
arcs
Definition
piece of the circumference
Term
sphere
Definition
a 3D circle
Term
ellipse
Definition
irregular or stretched circle
Term
minor arc and major arc
Definition
equal 360 degrees. Minor arc is smaller, major arc is larger.
Term
inscribed
Definition
a polygon lies within a circle
Term
circumscribed
Definition
a circle lies within a polygon
Term
inscribed angle
Definition
angle inside circle
Term
intercepted arc
Definition
an arc that is intercepted by an angle.
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