question

Point

answer

Which undefined term is needed to define an angle?
Point
Ray
Plane
Line

question

is described generally, not using a formal definition

answer

A plane is an undefined term because it
can be named using three noncollinear points
is where other geometric shapes can be constructed
is described generally, not using a formal definition
is a flat surface that extends indefinitely in all directions

question

point

answer

generally a location

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Line

answer

a stream of points has no width or depth

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collinear

answer

points that lie on the same line

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Noncollinear

answer

points that do not lie on the same line

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Plane

answer

A flat surface on which a straight line joining any two points would wholly lie.

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Coplanar

answer

points that lie on the same plane

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Noncoplanar

answer

points that do not lie on the same plane

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line segment

answer

part of a line with two endpoints

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ray

answer

A part of a line, with one endpoint, that continues without end in one direction

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vertex

answer

The common endpoint of an angle

question

angle

answer

A figure formed by two rays with a common endpoint

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postulate

answer

a statement that is accepted as true without proof

question

Thereoms

answer

are given pieces of information that seem true but must be proven using postulates

question

postulates, definitions, and undefined terms

answer

What three things are used to prove thereoms true?

question

Undefined terms

answer

will be used as a fundamental elements in defining other defined terms. This term includes point, line, and plane