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Definitely Definitions
Points, Lines and Planes
Based on the picture
Keep Defining
Postulates
100
part of a line containing two endpoints and all points between them.
What is Line Segment
100
one of the three "undefined terms" in Geometry having only position
What is Point
100

Can you tell if angle ABD is a right angle?

Yes- by the box

100
Two segments with the same length
What are Congruent Segments
100

These determine exactly one line

Two Points

200
part of a line that consists of one endpoint and all points of the line extending in one direction
What is a Ray
200
one of the three "undefined terms" in geometry having only length (one dimension)
What is Line
200

Is segment AD = segment DB?

Yes

200
an angle that measures more than 90 degrees
What is an Obtuse Angle
200

When two planes intersect, their intersection forms this.

A Line

300
The point of a line segment that divides it into two parts of the same length.
What is Midpoint
300
one of the three "undefined terms" in geometry having length and width but no depth (two dimensions)
What is Plane
300

Is <DAC congruent to <EAC?

No
300

An angle that measures less than 90 degrees

What is an acute angle

300

These determine exactly one plane

Three Noncollinear Points

400
a pair of rays that share a common endpoint
What is an Angle
400
two or more points on the same line
What are Collinear Points
400

What is the measure of angle EBC?

60 degrees

400
an angle that measures 90 degrees
What is a Right Angle
400

This is formed where two lines intersect.

A Point

500

Two rays that have the same endpoint but go in the opposite direction

What are opposite rays

500

Three or more points that are not on the same plane

noncoplanar

500

Find x if ray AB bisects angle DAC.

x = 19

500

How would we find the measure of <AFD given the picture? And what is the angle <AFE called?

Subtract 30 from 180 to get 150

Straight Angle

500

The number of points on a line

Infinite