Undefined Terms of Geometry

Undefined Terms of Geometry

by B. CHIMEZIE

​Undefined Terms of Geometry

​Point,

​

​Lines

​

​Planes

Multiple Choice

A location in space that is represented by a dot and has no dimensions

• Point

• Line

• Plane

• Angle

​A Point

• ​Has No dimension​

• It is represented by a (.)

• ​

• ​A Point is named with an upercase letter

• ​Every geometric figure is made up of a point

Point

A point has no size, no length, no width, and no thickness. In geometry it only indicates location or position. It is named using a capital letter such as the one you noticed in a rectangular coordinate plane as shown.

point H

point X

point A

Multiple Choice

This geometric object has no dimension and is represented by a single dot in space.

• Point

• Plane

• Line

• Ray

Multiple Choice

What is a point?

• a straight path

• an exact location

• endless flat surface

• lines that cross

Line

Multiple Choice

A straight one-dimensional figure having no thickness and extending infinitely in both directions. 

• line

• point

• ray

• straight angle

Multiple Choice

This is a(n):

• Line

• Ray

• Angle

• Line Segment

Multiple Choice

What is a line?

• a straight path of points that goes on and on in two directions

• an endless flat surface

• an exact location in space

• lines that never intersect

Multiple Choice

Name the figure.

• ray

• line

• line segment

• point

Plane

A plane is a flat surface extending indefinitely in all directions.

It has no thickness, but has two dimensions. (length and width)

A plane is named by a single letter (lower case ) or by three points not all in the same line or by using a script capital letters. Example

three capital letters (e.g. Plane AHX or Plane ℘).

Multiple Choice

Name the geometric shape modeled by the ceiling of your classroom.

• point

• line segment

• plane

• none of the above

Multiple Choice

Use the figure to name a line containing the

point X.

• line X

• line c

• line Z

• line YZ

Multiple Choice

Name the geometric shape modeled by a colored dot on a map used to mark the location of a city.

• point

• line segment

• plane

• none of the above

Multiple Choice

How many points do you need to make a line?

• 1

• at least 2

• 3

• 4