1. Calculate with measures.
Measure segments.
Calculate with measures.
Splash Screen

2. Mathematical Practices 6 Attend to precision.
Content Standards
G.CO.1 Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.
G.CO.12 Make formal geometric constructions with a variety of tools and methods (compass and straightedge, string, reflective devices, paper folding, dynamic geometric software, etc.).
Mathematical Practices
6 Attend to precision.
CCSS

3. line segment betweenness of points between congruent segments
construction
Vocabulary

4. Concept

5. A. Find the length of AB using the ruler.
Length in Metric Units
A. Find the length of AB using the ruler.
B. Find the length of AB using the ruler.
Example 1

6. B.
Example 1a

7. Length in Standard UnitsB.
Example 2

8. A. B.
Example 2a

9. Concept

10. Find XZ. Assume that the figure is not drawn to scale.
Find Measurements by Adding
Find XZ. Assume that the figure is not drawn to scale.
Example 3

11. Find BD. Assume that the figure is not drawn to scale.
16.8 mm
50.4 mm
Find BD. Assume that the figure is not drawn to scale.
Example 3

12. Find LM. Assume that the figure is not drawn to scale.
Find Measurements by Subtracting
Find LM. Assume that the figure is not drawn to scale.
Find TU. Assume that the figure is not drawn to scale. T U V
3 in
Example 4

13. Write and Solve Equations to Find Measurements
ALGEBRA Find the value of x and ST if T is between S and U, ST = 7x, SU = 45, and TU = 5x – 3.
ALGEBRA Find the value of n and WX if W is between X and Y, WX = 6n – 10, XY = 17, and WY = 3n.
Example 5

14. Concept

15. Concept

16. Homework
Page 18 (10-19,22-32 Even)
CCSS