Download Geometry Vocabulary - Leon County Schools

GeometryVocabulary
1.
Closedshape-ashapethatstartsandendsatthesamepoint
2.
Endpoint-pointsthatareusedtoshowsegmentsoflines
3.
Line-astraightpath,continuesinbothdirections,doesnotend
4.
Linesegment-isstraight,ispartofaline,has2endpoints
5.
Openshape-ashapethatdoesnotstartandendatthe
samepoint
6.
Planeshape-ashapeonaflatsurface.Itisformedbypointsthat
makecurvedpaths,linesegments,orboth.
7.
Point-isanexactpositionorlocation(A)
8.
Ray-isstraight,ispartofaline,has1endpoint,continuesin1direction
9.
Two-dimensionalshape-ashapethathaslengthandwidth,butno
thickness
10.
Angle-formedbytworaysthatshareanendpoint
11.
Rightangle-ananglethatformsasquarecorner(90*)
12.
AcuteAngle-ananglelessthan90*
13.
ObtuseAngle-ananglegreaterthan90*
14.
15.
Vertex-thesharedendpoint(thepluralofvertexisvertices)
Polygon-aclosedplaneshapethatismadeupofline
segmentsthatmeetonlyattheirendpoints.
16.
Pentagon-5sidedshape
17.
Hexagon-6sidedshape
18.
Octagon-8sidedshape
19.
Decagon-10sidedshape
20.
Quadrilateral-afoursidedfigure
21.
Parallelogram- A4-sidedflatshapewithstraightsideswhereoppositesidesare
parallel.Also:oppositesidesareequalinlength,andoppositeanglesareequal
22.
Side-thenameofeachlinesegmentinapolygon
23.
Triangle-shapewith3sidesand3angles
24.
IntersectingLines-linesthatcrossormeet.Intersectinglines
formangles.
25.
ParallelLines-linesthatappeartonevercrossormeetand
alwaysthesamedistanceapart.Thedonotformanyangles.
26.
PerpendicularLines-intersectinglinesthatcrossormeet
formrightangles
27.
Rectangle-has2pairsofoppositesidesthatareparallel,2
pairsofsidesthatareofequallengthand4rightangles
28.
Rhombus-has2pairsofoppositesidesthatareparalleland4sides
thatareofequallength
29.
Square-has2pairsofoppositesidesthatareparallel,4
sidesthatareofequallength,and4rightangles
30.
Trapezoid-hasexactly1pairofoppositesidesthatareparallel;
lengthsofsidescouldbethesame
are
31.
VennDiagram-showshowsetsofthingsarerelated