Sincewe havetwo sidesof congruentwith two sidesof , then Theorem5-13 appliesand we have.
LessonSummary
In this lessonwe:
- Statedand provedtheoremsthat helpeddeterminerelationshipsamongthe anglesand sidesof a pair
of triangle. - Appliedthe SAS and SSS InequalityTheoremsto solveproblems.
 
LessonExercises
Use the theoremsto makedeductionsin problems1-5. List any theoremsor postulatesyou use.
- Supposethat is acuteand is obtuse