Segments

L.8.2 Measuring Segments..

Target:

Use the Ruler Postulate.
Copy segments and compare segments for congruence.
Use the Segment Addition Postulate

POSTULATE

DEFINITION

In geometry, a rule that is accepted without proof is called a postulate or an axiom.

Finding the length of a segment:

Multiple Choice

Find measurement for QT.

• 10

• 6

• -10

Multiple Choice

Find measurement for PR.

• 9
• 1
• -1
• 3

​Comparing Segments for Congruence

​DETERMINE IF JK and LM are congruent

Example:

Multiple Choice

XY =

• 6
• 28
• 11
• 7

Multiple Choice

Find segment HG

• 30

• 6

• 12

• 18

Multiple Choice

If EG = 71, find the value of x:

• $$x=4.67$$  

• $$x=7$$  

• $$x=28.3$$  

• $$x=15.38$$