Chapter 1.1 Vocab

Question 1

Figures in geometry that cannot be described using other geometric figures

Answer 1

Undefined Figures

Question 2

Name the 3 undefined terms

Answer 2

Point, Line, Plane

Question 3

Points that lie on the same line

Answer 3

Collinear

Question 4

Points and lines that lie on the same plane

Answer 4

Coplaner

Question 5

A part of a line consisting of two points, called end points, and all the points on the line between the end points.

Answer 5

Segment

Question 6

A part of a line consisting of an end point, and all the points on the line in ONE direction of the end point

Answer 6

Ray

Question 7

Two rays, on the same line, that share an end point (form a line)

Answer 7

Opposite Rays

Question 8

A statement you accept as true without proof

Answer 8

Postulate

Question 9

Figure formed by two rays with a common end point

Answer 9

Angle

Question 10

What are the 4 types of angles?

Answer 10

Acute, Right, Obtuse, Straight

Question 11

Segments with the same length

Answer 11

Congruent (≅)

Question 12

Angles that have the same measure in degrees

Answer 12

Congruent Angles

Question 13

To divide into 2 equal parts

Answer 13

Bisect

Question 14

A segment, ray, or line that bisects a segment at a right angle

Answer 14

Perpendicular Bisector

Question 15

A segment, ray, or line that bisects an angle

Answer 15

Angle Bisector

Question 16

If B is between A and C, where A, B, and C are collinear, then AB + BC = AC

Answer 16

Segment Addition Postulate