CK12 - Geometry

(Marvins-Underground-K-12) #1
So the distancebetweenpoints and is , or about10.63units.

LessonSummary


In this lesson,we exploredpolygons.Specifically, we havelearned:



  • How to definepolygons.

  • How to understandthe differencebetweenconvexand concavepolygons.

  • How to classifypolygonsby numberof sides.

  • How to use the distanceformulato find side lengthson a coordinategrid.


Polygonsare importantgeometricshapes,and thereare manydifferenttypesof questionsthat involvethem.
Polygonsare importantaspectsof architectureand designand appearconstantlyin nature.Noticethe
polygonsyou see everyday whenyou look at buildings,choppedvegetables,and evenbookshelves.Make
sure you practicethe classificationsof differentpolygonsso that you can namethemeasily.


LessonExercises


For exercises1-5, nameeachpolygonin as muchdetailas possible.



  1. Explainwhy the followingfiguresare NOTpolygons:

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