Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
44 Cards in this Set
- Front
- Back
|
acute angle
|
an angle that measures less than 90 degrees
|
|
|
acute triangle
|
a triangle with all the angles measuring less than 90 degrees
|
|
|
angle
|
a figure formed from 2 rays with a common end point called a vector
|
|
|
center of rotation
|
the point where a figure is rotated
|
|
|
complementary angles
|
2 angles where the measurements add up to 90 degrees
|
|
|
congruent
|
having the same size and shape
|
|
|
correspondence
|
a relationship between 2 or more objects
|
|
|
equilateral triangle
|
a triangle where all the angles equal 60 degrees
|
|
|
image
|
a figure resulting from a transformation
|
|
|
isoscles triangle
|
a triangle with at least 2 congruent angles
|
|
|
line
|
a path that extends to infinity--a straight line
|
|
|
line of symmetry
|
the imaginary "mirror"
|
|
|
line symmetry
|
an equal mirror effect
|
|
|
obtuse angle
|
an angle measuring more than 90 degrees
|
|
|
obtuse triangle
|
a triangle with an obtuse angle in it
|
|
|
parallel lines
|
lines in a plane that do not intersect
|
|
|
parallelogram
|
a quadrilateral with 2 pairs of parallel sides
|
|
|
perpendicular lines
|
lines in a plane that intersect making a perfect cross
|
|
|
plane
|
a place where coordinates are graphed
|
|
|
point
|
an exact location in space
|
|
|
polygon
|
a closed figure
|
|
|
ray
|
part of a line that starts at one point and extends forever
|
|
|
rectangle
|
a parallelogram with 4 right angles
|
|
|
reflection
|
a transformation that flips a figure across a line
|
|
|
regular polygon
|
a polygon with congruent sides and angles
|
|
|
regular tesselation
|
a tesselation with regular polygons
|
|
|
rhombus
|
a parallelogram with all sides that are congruent
|
|
|
right angle
|
an angle measuring 90 degrees
|
|
|
right triangle
|
a triangle with a 90 degree angle
|
|
|
rise
|
a vertical change in graphs
|
|
|
rotation
|
a transformation in which a figure is turned around a point
|
|
|
rotational symmetry
|
when a figure can rotate less than 360 degrees and can still coincide with the original figure
|
|
|
run
|
a horizontal change a graph or grid
|
|
|
scalene triangle
|
a triangle where no sides are equal
|
|
|
segment
|
a part of a line between 2 endpoints
|
|
|
slope
|
a measure of steepness of a line on a graph
|
|
|
square
|
a rectangle with 4 congruent sides
|
|
|
supplimentary angles
|
2 angles that measure up to 180 degrees
|
|
|
tesselation
|
the repeating of a figure
|
|
|
transformation
|
a change in size or proportion of a figure
|
|
|
translation
|
a slide of a figure
|
|
|
transversal
|
a line that intersects 2 or more lines
|
|
|
triangle sum theory
|
a theory that states the angles of a triangle add up to 180 degrees
|
|
|
vertical angles
|
angles of intersecting lines
|
