heptagonal
Related Words
heptagonpolygongeometryanglevertexsideedgeperimeterareasymmetryregularirregularconvexconcaveinterior angleexterior anglesumdegreeradiantrianglequadrilateralpentagonhexagonoctagonnonagondecagonhendecagondodecagonpolyhedronprismpyramidtessellationtilingplanecoordinateaxisvectortrigonometrysinecosinetangentapothemdiagonalcircumcircleincircleradiusdiameterchordarccircumferenceshapefigureformdimensionlengthwidthheightvolumesurface areamathematicscalculationprooftheoremaxiomprotractorcompassrulersketchdiagramblueprintarchitecturecrystallatticesymmetry group