So, is 45º.Example 9
Whatis in the diagrambelowgiven and?To find , you mustsubtract from.So,.LessonSummary
In this lesson,we exploredrays and angles.Specifically, we havelearned:
- To understandand identifyrays.
- To understandand classifyangles.
- To understandand applythe ProtractorPostulate.
- To understandand applythe AngleAdditionPostulate.
Theseskillsare usefulwheneverstudyingrays and angles.Makesure that you fully understandall concepts
presentedhere beforecontinuingin your study.
LessonExercises
Use this diagramfor questions1-4.
- Give two possiblenamesfor the ray in the diagram.
- Give four possiblenamesfor the line in the diagram.
- Namean acuteanglein the diagram.