Shared Flashcard Set

Details

ch 15 ch 16
math vocabulary
26
Mathematics
4th Grade
02/07/2012

Additional Mathematics Flashcards

 


 

Cards

Term
intersecting lines
Definition
lines that cross at one point
Term
line
Definition
atraihgt path that goes on and on in 2 directions with no endpoints
Term
obtuse angle
Definition
an angle greater than a right angle and less than a straight angle
Term
line segment
Definition
part of a line with a beginning and an ending
Term
parallelogram
Definition
a quadrilateral with four sides where the opposite sides are parallel
Term
right angle
Definition
an angle that forms a square corner or 90*
Term
vertex/vertices
Definition
the point where two sides of a polygon meet (a corner of a box)
Term
Octagon
Definition
an 8-sided polygon
Term
Acute Angle
Definition
An angle less than a right angle or 90*
Term
Triangle
Definition
A 3-sided polygon
Term
Obtuse Triangle
Definition
triangle with one obtuse angle
Term
equilateral triangle
Definition
triangle with all sides the same and all angles the same.
Term
Isosceles Triangle
Definition
Triangle with 2 sides the same and 2 angles the same.
Term
Scalene Triangle
Definition
Triangle with no sides the same and no angles the same.
Term
Polygon
Definition
a closed, flat shape made up of three or more line segments.
Term
Quadrilateral
Definition
A 4-sided polygon
Term
side
Definition
one of the line segments that makes a ploygon.
Term
perpendicular lines
Definition
intersecting lines that form right angles.
Term
acute triangle
Definition
triangle with all angles acute
Term
Hexagon
Definition
a 6-sided polygon
Term
Congruent
Definition
figures that are the same size and shape.
Term
ray
Definition
part of a line; it has one endpoint and goes on without end in one direction.
Term
angle
Definition
formed by two rays with a common endpoint.
Term
pentagon
Definition
a 5-sided polygon.
Term
right triangle
Definition
triangle with one right angle
Term
trapezoid
Definition
a quadrilateral with only one pair of parallel sides.
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