Basic Geometry Terms

Question 1

a location in space, has position only. Named by capital block letter.

Answer 1

Point

Question 2

Goes forever in both directions, contains an infinite number of points; it’s length cannot be measured. (Named by lowercase letter or two points)

Answer 2

Line

Question 3

a flat surface made up of points, has no boundaries, contains an infinite number of points. (Named by Capital cursive or any three points)

Answer 3

Plane

Question 4

The set of all points

Answer 4

Space

Question 5

Points lying on the same line

Answer 5

Collinear

Question 6

Points that do not lie on the same line

Answer 6

Noncollinear

Question 7

Points or lines, rays, segments, that lie entirely in the same plane

Answer 7

Coplanar

Question 8

Points or lines, rays, segments, that do not lie entirely in the same plane

Answer 8

Noncoplanar

Question 9

part of a line consisting of two endpoints and all the points between them. It’s length can be measured.

Answer 9

Segment

Question 10

Part of a line starting at a given point on the line and extending without ending through the other point named. Length cannot be measured since it is a beginning but no end.

Answer 10

Ray

Question 11

All points that the figures have in common

Answer 11

Intersection of two figures

Question 12

Distance between two points

Answer 12

Length

Question 13

For one point to be between two other points, all three points must be collinear

Answer 13

Between

Question 14

A statement that is accepted to be true

Answer 14

Postulate

Question 15

A statement which can be proven to be true

Answer 15

Theorem

Question 16

A segment, ray, line or plane that intersects a segment at its midpoint

Answer 16

Segment bisector

Question 17

Segments that have equal lengths. Segments are congruent. Their lengths are equal.

Answer 17

Congruent segments

Question 18

A point that divides a segment into 2 congruent segments.

Answer 18

Midpoint