Lines and Planes Flashcards
1
Q
point
A
specific location named with a capital letter
2
Q
line
A
collection of infinite points
3
Q
ray
A
end point on one end arrow on the other.
4
Q
segment
A
part of a line between two endpoints
5
Q
plane
A
flat surface with no thickness that extends forever in two dimensions
6
Q
collinear points
A
3 or more points on the same line
7
Q
parallel lines
A
2 or more coplanar lines that never intersect
8
Q
coplanar
A
any points, lines, or part of lines on the same plane
9
Q
how are points named
A
capital letter
10
Q
how are lines named
A
any two points on line with double arrow or lowercase letter
11
Q
how to show parallel
A
//
12
Q
through any __ points there exists 1 line
A
2
13
Q
through any 2 points there exists __ line
A
1
14
Q
if 2 lines intersect they intersect in ___ point
A
1
15
Q
if ____ planes intersect their intersection is a ___
A
2, line
