AGS Geometry
Chapter 1 Exploring Geometry
Note Cards
Note Card 1-1A
Define, give an example, and show how to name each of the following
terms: Point, Line, Plane, Collinear, Line Segment, Endpoints, and Ray.
Note Card 1-1B
Define, give an example, and show how to name each of the following terms:
Collinear, Line Segment, Endpoints, and Ray.
Note Card 1-2A
Define Postulate Copy the Segment Addition Postulate and give an example of it.
Note Card 1-3A
Define angle and vertex and identify the 4 ways to name an angle.
Draw a diagram and label parts.
Note Card 1-3B
Define bisect and angle bisector. Draw a diagram and label parts.
Note Card 1-4A
Define degree and protractor. Pg 15 Define perpendicular lines and draw an
example. Pg 17
Note Card 1-4B
Define and draw an example of the following terms: acute angle, right angle,
obtuse angle, and straight angle. Pg 16-17
Note Card 1-5A
Define Adjacent Angles and draw an example.
Note Card 1-5B
Define Complementary Angles and Supplementary Angles and draw an
example of each.
Note Card 1-5C
Define Intersection and Vertical Angles and draw an example of each.
Collinear – points that lie on the same line.
Line segment or segment – is part of a line consisting of two
endpoints.
A
B
AB or BA
The measure of AB is written as AB.
Ray – part of a line consisting of one
endpoint and extending indefinitely
in one direction.
Point, Line, and Plane
1-1A
Collinear, Line Segment, and Ray
1-1B
Angle – formed from to noncollinear rays with the same
endpoint.
Side of an Angle – each ray that forms the angle are
considered sides of the angles.
Vertex – the common endpoint.
Naming the Angle
YXZ
ZXY
X
3
Segment Addition Postulate
1-2A
Angles
1-3A
Bisect – to divide into equal parts.
Angle Bisector – a ray that divides an angle into
two congruent angles.
In the diagram below, ray YW bisects XYZ.
So we can conclude that:
m XYW + m WYZ = m XYZ
Angles
Straight Angle – an angle measuring 180 degrees.
1-3A
Types of Angles
1-4A
Perpendicular Lines – lines that form right angles.
Perpendicular Lines
1-4B
Adjacent Angles
1-5A
Complementary and Supplementary Angles
1-5B
Perpendicular Lines
1-5C