# Shared Flashcard Set

## Details

Vocabulary Lessons 1-35
Saxon Math
25
Mathematics
5th Grade
11/14/2008

## Cards Return to Set Details

Term
 intersect
Definition
 to share a point or points
Term
 intersecting lines
Definition
 lines that cross
Term
 oblique lines
Definition
 lines in the same plane that are neither parallel nor perpendicular
Term
 parallel lines
Definition
 lines that stay the same distance apart; lines that do not cross
Term
 perpendicular lines
Definition
 two lines that intersect at right angles
Term
 acute angle
Definition
 an angle whose measue is more than 0 degrees and less than 90 degrees
Term
 angle
Definition
 the opening that is formed when two lines, line segments, or rays intersect
Term
 congruent
Definition
 having the same size and shape
Term
 obtuse angle
Definition
 an angle whose measure is more than 90 degrees and less than 180 degrees
Term
 plane
Definition
 a flat surface that has no boundaries
Term
 polygon
Definition
 a closed, flat shape with straight sides
Term
 quadrilateral
Definition
 any four-sided polygon
Term
 right angle
Definition
 an angle that forms a square corner and measures 90 degrees
Term
 side
Definition
 a line segment that is part of a polygon
Term
 similar
Definition
 having the same shape but not necessarily the same size; proportional
Term
 straight angle
Definition
 an angle that measures 180 degrees and forms a straight line
Term
 vertex
Definition
 a point of an angle, polygon, or solid where two or more lines meet
Term
 exact number
Definition
 a number that has not been rounded
Term
 round
Definition
 to express a calculation or measure to a specific degree of accuracy
Term
 round number
Definition
 a whole number that ends with one or more zeros
Term
 elapsed time
Definition
 the differnce between the starting time and ending time
Term
 sum
Definition
 answer to an addition problem
Term
 difference
Definition
 answer to a subtraction problem
Term
 product
Definition
 answer to a multiplication problem
Term
 quotient
Definition
 answer to a division problem
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