CK12 - Geometry

ProveCorollary5 to the CrossMultiplicationTheorem. Answers False True False True True False True True True ...

SimilarPolygons LearningObjectives Recognizesimilarpolygons. Identifycorrespondinganglesand sidesof similarpolygonsfrom a state ...

The quadrilateralsin the upperleft arenotsimilarbecausethey are not the sameshape. The quadrilateralsin the upperrightaresimila ...

Two polygonsaresimilarif and only if: they havethe samenumberof sides for eachanglein eitherpolygonthereis a correspondingangle ...

Finally, since is an angle,we are lookingfor Example 3 is a rectanglewith length and width. is a rectanglewith length and width. ...

The lengthof everyside of the first polygonis timesthe lengthof the correspondingside of the other polygon. Example 5 Lookat the ...

Ratioof the Perimetersof SimilarPolygons: If and are two similarpolygons, eachwith sidesand the scalefactorof the polygonsis , t ...

is. LessonSummary Similarhas a very specificmeaningin geometry. Polygonsare similarif and only if the lengthsof their sides are ...

Whatis the valueof eachexpression? 8. 9. 10. 11. Giventhat , whatis the scalefactorof the triangles? Use the diagrambelowfor e ...

False False True True False 8. 9. 10. 11. , , or 13. 14. , , or equivalent , so the sidesare all proportional. (verticalan ...

Similarityby AA LearningObjectives Determinewhethertrianglesare similar. UnderstandAAA and AA rulesfor similartriangles. Solvep ...

Drawtwo polygonsthat arenotsimilar, but whichdohaveall correspondinganglescongruent. Rectanglessuchas the onesbelowmakegoodexamp ...

B.Writea similaritystatementfor the triangles. or equivalent C.Nameall pairsof congruentangles. , , D. Write equationsstatingthe ...

Note:It is safe to assumethat the sun’s rays hit the groundat the sameangle.It is also properto assume that the toweris vertical ...

Explainhow you knowthat the trianglesyou namedin exercise1 are similar. Write a true proportion. Nametwo trianglesthat mightnot ...

Carlosplaceda markerat. Darrylplaceda markerdirectlyacrossfrom Carlosat. Bela walked feet backfrom the bankin a line with the m ...

One acuteanglein eachtriangleis congruentto an acuteanglein the othertriangle.Also,sincethey are right triangles,both triangles ...

similartrianglesand solvingproblemsinvolvingthem. ExploringSSS and SAS for SimilarTriangles We’ll use geometrysoftwareand compas ...

Partner1: Drawa 6-8-10triangle. Partner2: Drawa 9-12-15triangle. Partner1: Measurethe anglesof your triangle. Partner2: Measure ...

She drew , and made. Thenshe carefullydrew , making and =. At this point,Cherylhad drawntwo segments( and ) with lengthsthat are ...