Shared Flashcard Set

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Geometry unit one through five
geometry terms
30
Mathematics
10th Grade
03/23/2013

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Cards

Term
Geometry
Definition
measure of the earth
Term
point
Definition
smallest unit of measure
Term
Line
Definition
infinite number of connected points
Term
ray
Definition
on half of a line. an endpoint at one end and infinity at the other.
Term
Line segment
Definition
a finite or measurable piece of a line.
Term
congruent
Definition
exactly the same shape and size
Term
similar
Definition
same shape but not the same size
Term
equal
Definition
two line segments are the same measurable length.
Term
plane
Definition
infinite number of connected lines lying on the same flat surface. 2 dimensions.
Term
coplanar
Definition
two lines on the same plane.
Term
plane geometry
Definition
flat two dimensional shape that lie on the same plane.
Term
intersection
Definition
where two of more things meet or overlap.
Term
union
Definition
where two or more things are combined
Term
empty or null set
Definition
no possible answer
Term
subset
Definition
one set is a subset of another
Term
set
Definition
symbols that represent a set.
Term
angle
Definition
the opening between two intersecting lines.
Term
ruler
Definition
measures length
Term
protractors
Definition
measure angles
Term
degrees
Definition
measurement of angles
Term
right angle
Definition
measure of 90 degrees
Term
straight angle
Definition
measure of 180 degrees
Term
360 angle
Definition
a complete circle
Term
acute angle
Definition
more than 0, less than 90 degrees
Term
obtuse angle
Definition
larger than 90, less than 180 degrees
Term
reflex angle
Definition
larger than 180 and less than 360 degrees
Term
parallel lines
Definition
two lines in the same plane that never intersect.
Term
perpendicular lines
Definition
two lines or rays or line segments that intersect and form a right angle.
Term
midpoint
Definition
middle of line segment.
Term
bisector
Definition
an angle cut exactly in half.
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