CK12 - Geometry

Aregularpolygonis a polygonwith congruentsidesand congruentangles.Whatis the measureof each anglein a regularpentagon? Whatis t ...

decagon 10 dodecagon 12 -gon Sincethe sum of the anglesis , eachanglemeasures [Diff: 2] [Diff: 2] [Diff: 3] Answerswill vary. O ...

As you can tell, thereare two possibleexterioranglesfor any givenvertexon a polygon.In the figureabove we only showedone set of ...

The interiorangleis labeledas. Sinceyou needto find the exteriorangle,noticethat the interiorangle and the exteriorangleform a l ...

The sum of thesethreeexterioranglesis: So, the exterioranglesin this trianglewill sum to. To compare,examinethe exterioranglesof ...

Find the sum of the four exterioranglesin a rectangle. So, the sum of the exterioranglesin a rectangleis also. In fact, the sum ...

equationwherewe set all of the exterioranglesshown(including ) summedand equalto . Usingsubtraction,we can find the valueof. The ...

3. __, __ Drawan equilateraltrianglewith one set of exteriorangleshighlighted.Whatis the measureof eachex- teriorangle?Whatis t ...

Eachexteriorangleformsa linearpair with its adjacentinternalangle.In a regularpolygon,you can use two differentformulasto find ...

Sumof measuresof ex- teriorangles Measureof eachexterior angle Measureof eachinterior angle Sumof mea- suresof inte- rior angles ...

Identifyhow to classifyshapeson a coordinategrid. Introduction Thereare manydifferentclassificationsof quadrilaterals.In this ...

DrawAuxiliarysegment and label2. Line Postulate the anglesas follows. Definitionof parallelogram AlternateInteriorAnglesThe ...

Statement Reason is a Rhombus. 1. Given Definitionof a rhombus Add auxiliarysegment. 3. Line Postulate ReflexiveProperty ...

Kite Akiteis a differenttype of quadrilateral.It doesnot haveparallelsidesor right angles.Instead,a kite is definedas a quadrila ...

Example 1 Whichis the mostspecificclassificationfor the figureshownbelow? A. parallelogram B. rhombus C. rectangle D. square The ...

A. parallelogram B. kite C. trapezoid D. isoscelestrapezoid The shapeabovehas exactlyone pair of parallelsides,so you can rule o ...

To begina Venn Diagram,you mustfirst drawa largeellipserepresentingthe biggestcategory. In this case,that will be quadrilaterals ...

To find out whetherlinesare parallel,you can find the slopeby computing. If the slopesare the same,the linesare parallel.Similar ...

For segment , find the distancebetween(-1, 3) and (1, -3). So, the lengthof eachsegmentis equalto , and the sidesare all equal.A ...

sidesof do not intersecta right angle,you can rule out square.Therefore is a rhombus. LessonSummary In this lesson,we exploredqu ...