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CHS geometry 2015-2016--vocabulary list 2 definitions
definition flashcards to accompany vocabulary list 02
12
Mathematics
10th Grade
10/23/2015

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Cards

Term
collinear
Definition
If two geometric figures are __________, then they lie on the same line.
Term
coplanar
Definition
If two geometric figures are __________, then they lie on the same plane.
Term
(line) segment
Definition
If a figure is a(n) __________, then it is part of a line that begins at one point on a line and ends at another point on the line.
Term
ray
Definition
If a figure is a(n) __________, then it is a part of a line that starts at a point on the line and extends infinitely in one direction.
Term
angle
Definition
If a figure is a(n) __________, then it is formed by two rays with a common endpoint.
Term
vertex (of an angle)
Definition
If a point is the __________ of an angle, then it lies on both rays that form the angle.
Term
interior (of an angle)
Definition
The __________ is the region of a plane that falls between the two rays that form an angle.
Term
exterior (of an angle)
Definition
The __________ is the portion of the plane containing an angle that is not in the angle's interior.
Term
postulate (or axiom)
Definition
A(n) __________ is a statement that is accepted as true without proof.
Term
conjecture
Definition
A(n) __________ is a statement that you believe to be true. It is an “educated guess” based on observations
Term
proof
Definition
A(n) __________ is a convincing argument that uses logic to show that a statement must be true
Term
theorem
Definition
A(n) __________ is a statement that has been proven true using deductive reasoning
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