1.1 Points, Lines, and Planes

Question 1

concepts are so basic that it is impossible to write a definition that does not refer the term being defined.

Answer 1

Undefined term

Question 2

names a location and has no dimension.

Answer 2

point

Question 3

names a straight path of points in a plane.

Answer 3

line

Question 4

is a flat surface it has no thickness.

Answer 4

plane

Question 5

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

Answer 5

endpoint

Question 6

is a point of a line that starts at an end endpoint and extends forever on one direction.

Answer 6

ray

Question 7

is part of a line consisting of two endpoints and all points between them.

Answer 7

line segment

Question 8

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

Answer 8

distance

Question 9

points and lines that lie on the same plane.

Answer 9

coplanar

Question 9

points that lie on the same line.

Answer 9

collinear

Question 10

A line segment can be bisected using a compass and straightedge to find the midpoint.

Answer 10

bisect

Question 11

is a statement that is accepted as true without proof.

Answer 11

posrulate

Question 11

Two segments that have the same length and you can write a congruence statement using the symbol

Answer 11

congruent

Question 12

is a segment that the points that bisects the segment into two congruent segments.

Answer 12

midpoint