The distancebetweenthe two pointsis 7 units.LessonSummary
In this lesson,we exploredsegmentsand distances.Specifically, we havelearned:
- How to measuredistancesusingmanydifferenttools.
- To understandand applythe RulerPostulateto measurement.
- To understandand applythe SegmentAdditionPostulateto measurement.
- How to use endpointsto identifydistanceson a coordinategrid.
Theseskillsare usefulwheneverperformingmeasurementsor calculationsin diagrams.Makesure that
you fully understandall conceptspresentedhere beforecontinuingin your study.
LessonExercises
- Use a ruler to measurethe lengthof below.
- Accordingto the ruler in the followingimage,how long is the cockroach?
(Source: http://commons.wikimedia.org/wiki/File:Dubia-cockroach-female-near-ruler.jpg, License: Public
Domain)
- The ruler postulatesays that we couldhavemeasuredthe cockroachin 2 withoutusingthe 0 cm marker
as the startingpoint.If the samecockroachas the one in 2 had its headat 6.5 cm, wherewouldits tail be
on the ruler? - Suppose is exactlyin the middleof and Whatis
- Whatis in the diagrambelow?