unit 1 Flashcards
congruent by
identical in size and shape
line
a straight continuous arrangement of infinitely many points. has infinite length & no thickness. its named by giving letter names 2 any 2 points.
<——-
postulate
a statement accepted as true w/o proof
incongruent
not the same size or shape
point
has no size, length, width & no thickness. used to represent a location
ray
begins at one endpoint & extends infinitely in one direction
——->
length (measure)
distance
line segment
part of a line that consists of 2 endpoints, which prevents the line from extending forever
•———–•
A. B
circle
the set of all points equidistant from a central point
radius
the distance between the center of a circle & any point on the circumference
midpoint
the point on a segment that is equidistant from both endpoints
straightedge
tool used 2 draw a straight line, doesnt need to have measurements
coplanar
when points & lines exist in the same plane
partition
2 seperate/divide a segment into a given ratio
equidistant
equal length, equal distance
segment addition
a statement that allows us 2 combine 2 segments 2 form a longer segment
construction
a geometric figure made with a straightedge & compass
plane
a flat surface that extends infinitely along its length & width, has no thickness
center point
the point inside a circle that is equidistant from all the points on a circle
bisect
to cut/divide into 2 equal parts
compass
a tool used 2 construct circles and arcs
collinear
when 3 or more points r on the same line
perpendicular
2 lines that intersect 2 form a right angle
arc
a fraction of a circles circumference
