Luokka Geometriabulgariaenglantiespanjaesperantohollantiitaliajapanikreikkalatinalatvialiettuanorjaportugalipuolaranskaruotsisaksasuomitanskaturkkitšekkiunkarivenäjäviro

coincidence compass complement complementary angles complex concave concentric conchoid concurrent concyclic cone confluent congruence conic conic section conical conics conjugate angles conoid construct construction contingence conus convex convex hull coordinate axis coöriginal coplanar coplanarity coterminal covertex CPCFC CPCTC cross-ratio

crown crunodal crunode cube cubic cubical cubically cubo-cubic cuboctahedral cuboctahedron cuboid cuboidal curvative curvature curve curvilinead curvilinear cusp cyclic cyclic quadrilateral cyclohedron cycloid cyclometry cylinder cylindrical cylindrically cylindroid decagon decomino deficiency degree describent developable

developable surface diagonal diameter diamond Didonia differential geometry dihedral angle dimension directrix dirigent discriminant disphenoid divine proportion dodecadodecahedron dodecagon dodecahedron domino dual ecliptic edge effective elation ellipse ellipsoid of revolution enneagon enneagonal enneahedral enneahedron envelope epicycloid epitrochoid equiangular equidecomposability