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# 1-3 Measuring Segments

To find and compare lengths of segments.
by

## Sherrie Ammons

on 14 August 2013

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#### Transcript of 1-3 Measuring Segments

1-3
Measuring Segments
Lesson
Objective
Focus
Question
Vocabulary
Real-Life
Connection
Assignment
Summary
To find and compare
lengths of segments
How do you find & compare
lengths of segments?
You can use number operations
to find & compare the lengths of segments
Coordinate
the real number that corresponds to a point
distance
the absolute value of the difference of their coordinates
congruent segments
segments that have the same length
midpoint
a point that divides the segment into 2 congruent segments
segment
bisector

a point, line, ray, or other segment that intersects a segment at its midpoint
Postulates
Segment
Postulate

If 3 points A, B, and C are collilnear and B is between A and C, then

AB+ BC AC
Ruler Postulate
Every point on a line can be paired with a real number
(coordinate)
AB = 1 a-b 1
With your shoulder partner, complete worksheet 1-3.
How long is AB?
If PQ is 8 and QR is 17, how long is PR?
If PQ is 14 and PR is 38, find QR.
25
If AM = 4, how long is AB?
If AB = 10, find AO.
What is the coordinate of point A?
Find the coordinate of B.
AB = CD
EF = HG