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;
23 Cards in this Set
- Front
- Back
|
point
|
a location that has no size (a dot)
|
|
|
line
|
extends infinitely in either direction but has no width
|
|
|
plane
|
flat two dimensional surface
|
|
|
collinear
|
three or more points that lie on a single line
|
|
|
coplanar
|
points that lie on the same plane |
|
|
segment
|
a line that has two end points
|
|
|
endpoint
|
a point where a line segment or ray ends
|
|
|
ray
|
a line with a single endpoint
|
|
|
acute
|
an angle that is less than 90 degrees
|
|
|
right
|
two angles whose sum is less than 90 degrees
|
|
|
obtuse
|
an angle that is greater than 90 degrees
|
|
|
straight
|
an angle that measures 180 degrees
|
|
|
parallel lines
|
two lines that never meet
|
|
|
perpendicular lines
|
two lines meeting at a right angle
|
|
|
skew lines
|
two lines that do not intersect and are not parallel
|
|
|
transversal
|
a line that cuts across two or more lines
|
|
|
corresponding angles
|
when two lines are cut by a transversal, the angles matching in the corners of the two lines
|
|
|
alternate interior angles
|
when two lines are cut by a transversal, the angles that are on opposite sides of the transversal but also inside of the two lines
|
|
|
supplementary
|
two angles whose sum is 180 degrees
|
|
|
complementary
|
an angle that is exactly 90 degrees
|
|
|
vertical pair
|
angles that are opposite each other when two lines cross
|
|
|
preimage
|
the original figure prior to a transformation
|
|
|
image
|
the figure after a transformation
|
