1.1 points lines and planes

Question 1

Undefined Term

Answer 1

It is impossible to write a definition that does not refer to a term being defined

Question 2

point

Answer 2

Names a location, a point has no dimension

Question 3

line

Answer 3

Names a straight path of points in a plane. Has no width or thickness.

Question 4

Plane

Answer 4

a plane is a flat surface. Extends forever in 2 dimensions.

Question 5

endpoint

Answer 5

a point to the end of a segment or the starting point of a ray.

Question 6

Ray

Answer 6

A part of a line that starts at an endpoint

Question 6

line segment

Answer 6

part of a line consisting of two endpoints

Question 7

distance

Answer 7

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

Question 8

collinear

Answer 8

points are collinear if they lie on the same line

Question 9

coplanar

Answer 9

Points are coplanar if they lie on the same plane

Question 10

postulate

Answer 10

a statement that is accepted as true without proof

Question 11

congruent

Answer 11

two segments with the same length

Question 12

bisect

Answer 12

to divide into two congruent parts

Question 13

midpoint

Answer 13

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