1. CHAPTER 1
SECTION 5

2. SEGMENTS AND THEIR MEASURES
GOAL: MEASURE SEGMENTS AND ADD SEGMENT LENGTHS
A coordinate is a real number that corresponds to a point.
The distance between points A and B is written AB. It is the
absolute value of the difference of the coordinates of A and B.

3. A B • •
-12 9 S T • • 15 38 M N • •
-42
-15

4. • • • A B C
If AB = 8 and AC = 13 then find the length of BC.

5. Find the distance from Albany to Athens.
Find the length of EF.

6. Segments that have the same length are congruent segments.
The length AB is equal to the length of CD. AB = CD
The segment AB is congruent to segment CD. AB ≅ CD

7. • • • • • • Write an expression for each case shown. A B C 4x + 12
Find AC.
9z + 12 • • • Q
2z + 3 R S
Find RS.

8. • • • • • • 5x + 8 A X + 6 B 2x + 4 C Find the value of x. 7y + 8 JK
y + 4 L
Find the value of y.

9. • • • • Are the segments shown in the coordinate plane congruent?
B(5,4)
A(-1,4) • •
Are the segments
shown in the
coordinate plane
congruent?
C(-4,3) • •
D(-4,-3)

10. HOMEWORK
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1-33