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

bisector

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

Postulates

**Segment**

Addition

Postulate

Addition

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

In your Math Journal, complete Task 2.