Unit 9 Page 1 Vocabulary Flashcards
1
Q
Line
A
Contains 2 points extends infinitely in both directions, flat
2
Q
Point
A
An exact location
3
Q
line Segment
A
Part of a line w/ 2 end points
4
Q
Vertex
A
Point where 2 or more line segments meet
5
Q
Angle
A
2 rays connected at a vertex
6
Q
Parallel lines
A
Don’t intersect
7
Q
Intersecting lines
A
Intersect=right angles
8
Q
Right angle
A
Exactly 90 degrees
9
Q
Straight angle
A
Exactly 180 degrees
10
Q
Acute angle
A
Less than 90 degrees
11
Q
Obtuse angle
A
Between 90 and 180 degrees
12
Q
Complementary angles
A
Angles who’s sum is 90 degrees
13
Q
Supplementary angles
A
Angles whose sum is 180 degrees
14
Q
Ray
A
Part of a line w/ endpoint and extends infinitely in one direction
15
Q
Endpoint
A
Point marking the end of a line segment or ray
