1.1-Points, Lines& Planes

Question 1

Undefined terms

Answer 1

Most words or terms used in geometry are defined but some concepts are so basic that it is impossible to write a definition that does not refer to the term being defined. These are called UNDEFINED TERMS

Question 2

Endpoint

Answer 2

Is a point at an end of a segment or the starting point of a ray.

Question 3

Ray

Answer 3

Is a part of a line that starts at an endpoint and extends forever in one direction

Question 4

Line Segment

Answer 4

is parts of a lime consisting of two endpoints and all points between them.

Question 5

Distance

Answer 5

between two points is a measure of the length of the shortest line Segment that would connect them.

Question 6

Collinear

Answer 6

if they lie on the same line

Question 7

Coplanar

Answer 7

if they lie in the same plane

Question 8

Postulate

Answer 8

is a statement that is accepted as true without proof.

Question 9

Congruent

Answer 9

and you can write a congruence statement using the symbol

Question 10

Bisect

Answer 10

a figure is to divide it into two congruent parts

Question 11

Midpoint

Answer 11

of a segment is the point that bisects the segment into two congruent segments

Question 12

point

Answer 12

names a location

Question 13

line

Answer 13

names a straight path of points in a plane

Question 14

plane

Answer 14

is a flat surface