Segments and Rays 1.2 Notes

Term DefinitionPictureNotation Ray ____ capital letters A B CD Initial point, then continues in one direction 2 AB DC

Term DefinitionPictureNotation Opposite Rays A B C Rays that go in opposite directions AB AC and

Term DefinitionPictureNotation Segment A B Has two endpoints, doesn’t go on forever AB BA

Term DefinitionPictureNotation Congruent Segments A B C D Same length

BA Line h

Plane ABE

DC

BABC BD

CB

Determine whether each statement is always, sometimes, or never true. always

Determine whether each statement is always, sometimes, or never true. never

Determine whether each statement is always, sometimes, or never true. sometimes

Determine whether each statement is always, sometimes, or never true. always

10. Sketch the figure described. AB C D

b. Two rays that intersect at their initial point. AB C

11. Graph the inequality on a number line. Tell whether the graph is a segment, a ray or rays, a point or a line ray

11. Graph the inequality on a number line. Tell whether the graph is a segment, a ray or rays, a point or a line segment

11. Graph the inequality on a number line. Tell whether the graph is a segment, a ray or rays, a point or a line line

12. Plot the given points in a coordinate plane. Then determine whether the line segments named are congruent. AB2 C D 2 congruent

EG 5 H F 3 Not congruent

Exploring Intersections: When planes meet, what points do they have in common? Materials: 3 index cards and scissors

AGB C D N AGB E F M

Point G

AB

No, They lie in different planes

STW U V P AGB E F M

Point T

SWSW

No, They are parallel