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Geometry
word meanings in geometry
38
Mathematics
6th Grade
02/27/2012

Additional Mathematics Flashcards

 


 

Cards

Term

Point

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Definition

Book: An exact location in a space

 

My: A dot or mark that shows an exact location (line segment)

Term

Plane

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Definition

Book: A flat surface that extends forever

 

My: An even surface that goes on forever

Term

Line

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Definition

Book: A straight path that extends without end in opposite directions


My: A straight line that goes on forever in both directions

Term

Ray

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Definition

Book: A part of the line that starts at one endpoint and extends for ever.

 

My: One side of a line that goes on forever and the other that ends at a point

Term

Line Segment

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Definition

Book: A part of a line between two end points


My: A line that has two end points

Term

Congruent

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Definition

Book: Having the same size and shape


My: Two objects that have the same size and shape

Term

Angle

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Definition

Book: A figure formed by two rays with a common end point called the vertex


My: A figure that has two rays and a vertex

Term

Vertex ( of an angle)

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Definition

Book: The common end point of the sides of an angle


My: The point where two lines in an angle meet

Term

Acute Angle

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Definition

Book: An angle that measures less than 90˚


My: An angle that is less than 90˚

Term

Right Angle

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Definition

Book: An angle that measures 90˚


My: An angle that is 90˚

Term

Obtuse Angle

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Definition

Book: An angle whose measure is greater than 90˚ but is less than 180˚


My: An angle less than 180˚ but greater than 90˚

Term

Straight Angle

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Definition

Book: An angle that measures 180˚


My: An angle that is 180˚

Term

Adjacent Angles

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Definition

Book: Angles in the same plane that are side by side and have a common vertex and a common side


My: Angles that have the same vertex and side

Term

Vertical Angles

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Definition

Book: A pair of angles that are formed by two intersecting lines and are not adjacent


My: Two angles that are formed by intersecting lines and are not adjacent

Term

Complementary Angles

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Definition

Book: two angles whose measures add to 90˚


My: two angles that add up to 90˚d

Term

Supplementary Angles 

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Definition

Book: two angles whose meaures add to 180˚


My: two angles that add up to 180˚

Term

Polygon

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Definition

Book: a closed plane figure formed by 3 or more line segments(sides). Each side meets exactaly two other sides, one on each end, in a common endpoint(vertex).


My: a closed plane that has to meet 2 other sies and have a common endpoint on each end

Term

Vertex

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Definition

Book: the intersection of two sides of the polygon


My: the intersection of two sides of a polygon

Term

Triangle

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Definition

Book: a three-sided polygon


My: a polygon with 3 sides

Term

Quadrilateral

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Definition

Book: a four sided polygon 


My: a polygon with 4 sides


Term

Pentagon

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Definition

Book: a five sided polygon


My: a polygon with 5 sides

Term

Hexagon

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Definition

Book: a six sided polygon


My: a polygon with 6 sides

Term

Heptagon

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Definition

Book: a seven sided polygon


My: a polygon with seven sides

Term

Octagon

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Definition

Book: a eight sided polygon


My: a polygon with eight sides

 

 

 

 

 

 

 

 

Term

Nonagon

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Definition

Book: a nine sided polygon


My: a polygon with nine sides

Term

Decagon

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Definition

Book: a ten sided polygon


My: a polygon with ten sides

Term

Scalene Triangle

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Definition

Book: a triangle with no congruent sides

 

My: a triangle that does not have any equal sides

Term

Isosceles Triangle

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Definition

Book: a triangle with at least two congruent sides

 

My: a triangle that only has two equal sides

Term

Acute Triangle

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Definition

Book: a triangle with all angles measuring less than 90˚

 

My: a triangle with all acute angles

Term

Obtuse Triangle

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Definition

Book: a triangle containing one obutse angle

 

My: a triangle with only one obtuse angle

Term

Right Triangle

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Definition

Book: a triangle containing a right angle

 

My: a triangle with exactly one right angle

Term

Parallelogram

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Definition

Book: a quadrilateral with two pairs of parallel sides

 

My: a quadrilateral that has opposite sides parallel

Term

Rectangle

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Definition

Book: a parallelogram with four right angles

 

My: a parallelogram that has four 90˚ angles

Term

Rhombus

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Definition

Book: a parallelogram with all sides congruent

 

My: a parallelogram that has all sides congruent

Term

Square

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Definition

Book: a rectangle with four congruent sides

 

My: a parallelogram with four right angles and all sides congruent

Term

Trapezoid

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Definition

Book: a quadrilateral with exactaly one pair of parallel sides

 

My: a quadrilateral with only one pair of parallel sides

Term

Side-side-side Rule

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Definition

Book: a rule stating that if tree sides of one triangle are congruent to the three sides of another triangle, then the triangles are congruent

 

My: a rule that says if all sides are congruent  (3 from one and 3 from another), in a triangle, they  are congruent

Term

Vertex (of a polygon)

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Definition

Book: the intersection of two sides of the polygon

 

My: the intersection of two sides in a polygon

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