Lesson 1.1-1.5 Flashcards
Location in space, no dimension, dot, name: capital letter
Point
Series of points in opposite direction without end, 1-D, straight, name: 2 pts./ cursive lowercase letter
Line
Flat surface forever, 2-D, inf. pts and lines, 4 sided figure, name: three noncollinear pts. on plane/ cap cursive letter
Plane
pts. that can lie on same plane
Collinear Pts.
pts. not all on same line
Non-collinear Pts.
pts. that lie on same plane
Coplanar pts
measurement should be precise to within .5 unit of measure
precision
pts that DONT lie on same plane
non coplnar pts
set of all pts in 3-D
space
part of line w/ 2 end pts
segment
(seg addition postulate) collinear pts, AB+BC=AC add up betweeness
b/wness of pts
middle b/w pts, congruent
midpoint
part of line, one end pt other extend inf,
ray
2 rays w/ common end pt that go in opp direction
opposite rays
formed by 2 noncollinear rays that have common vertex,
angle