absis

(geometry, surveying) the first of the two terms by which a point is referred to, in a system of fixed rectilinear coordinate (Cartesian coordinate) axes

(geometry, surveying) the horizontal line representing an axis of a Cartesian coordinate system, on which the abscissa (sense above) is shown


basis

Borrowed from Dutch basis, from Latin basis, from Ancient Greek βάσις (básis). Doublet of basa.

(geometry) the lowest side of a in a triangle or other polygon, or the lowest face of a cone, pyramid or other polyhedron laid flat


median

médian (canonical)
median-median (plural)

From Dutch mediaan, from Latin medianus (“of or pertaining to the middle”, adjective), from medius (“middle”) (see medium), from Proto-Indo-European *médʰyos (“middle”). Doublet of madya.

der

(geometry) a line segment joining the vertex of triangle to the midpoint of the opposing side


spiral

Borrowed from Dutch spiraal (“spiral”), from French spirale, from Medieval Latin spiralis, from Latin spira, from Ancient Greek σπεῖρα (speîra, “wreath, coil, twist”).


diameter

diamètêr (canonical)
diameter-diameter (plural)

From Dutch diameter, from French diamètre, from Latin diametrus, from Ancient Greek διάμετρος (diámetros).


poligon

Borrowed from Dutch polygoon (“polygon”), from French polygone, from Latin polygōnum, from Ancient Greek πολύγωνον (polúgōnon).


parabola

Learned borrowing from New Latin parabola, from Ancient Greek παραβολή (parabolḗ). Doublet of parabel.

lbor

(geometry) parabola (the locus of points equidistant from a fixed point and line)


piramida

Internationalism. Borrowed from Dutch piramide, from French pyramide, from Old French piramide, from Latin pȳramis, pȳramidis, from Ancient Greek πῡραμίς (pūramís), possibly from πῡρός (pūrós, “wheat”) + ἀμάω (amáō, “reap”) or from Egyptian pr-m-ws (“height of a pyramid”), from pr (“(one that) comes forth”) + m (“from”) + ws (“height”).

der

(geometry) a solid with triangular lateral faces and a polygonal (often square or rectangular) base


poros

(geometry) an imaginary line around which an object spins (an axis of rotation) or is symmetrically arranged (an axis of symmetry)


limas

Inherited from Malay limas, from Classical Malay ليمس (limas), from Proto-Malayo-Polynesian *limas.


hipotenusa

hipotenusa-hipotenusa (plural)
هيڤوتينوس (hipoténus) (alternative)

Borrowed from Dutch hypotenusa, from Latin hypotenusa, from Ancient Greek ὑποτείνουσα πλευρά (hupoteínousa pleurá, “side subtending [the right angle]”), from ὑποτείνουσα (hupoteínousa, “stretching, extending, subtending”), active participle of ὑποτείνω (hupoteínō, “subtend, stretch under”).

ὑποτείνουσα πλευρά


akut

From Dutch acuut (“acute”), from Latin acūtus.

(geometry) of an angle: less than 90 degrees

acute:
of an angle: less than 90 degrees


lingkaran

* Affixed form of lingkar + -an
* Semantic loan from Dutch kring (literally “circle”).

sl

(geometry) a two-dimensional geometric figure, a line, consisting of the set of all those points in a plane that are equally distant from a given point (center)


kubus

From Dutch kubus, from Latin cubus, from Ancient Greek κύβος (kúbos).


sektor

sèktor (canonical)
sektor-sektor (plural)

(mathematics, geometry) part of a circle, extending to the center


busur

From Malay busur, from Proto-Malayic *busur, from Proto-Malayo-Polynesian *busuʀ, from Proto-Austronesian *busuʀ.

(Standard Malay)

(geometry) arc: continuous part of the circumference of a circle (circular arc) or of another curve


sisi

(geometry) face: any of the flat bounding surfaces of a polyhedron. More generally, any of the bounding pieces of a polytope of any dimension


konus

Learned borrowing from Latin cōnus (“cone”), from Ancient Greek κῶνος (kônos).

lbor

(geometry) cone: A surface of revolution formed by rotating a segment of a line around another line that intersects the first line; A solid of revolution formed by rotating a triangle around one of its altitudes


rusuk

Inherited from Malay rusuk, from Proto-Malayic *rusuk, from Proto-Malayo-Polynesian *ʀusuk (“rib”), from Proto-Austronesian *ʀusuk (“rib”).

(geometry) a one-dimensional face of a polytope. In particular, the joining line between two vertices of a polygon; the place where two faces of a polyhedron meet; edge


titik

From Malay titik, from Classical Malay titik (“drop”).


layang-layang

Inherited from Malay layang-layang. Equivalent to reduplication of layang.

(geometry) a quadrilateral resembling the shape of a traditional toy kite (sense 1)


heksagon

Internationalism. Borrowed from English hexagon, from Latin hexagōnum, from Ancient Greek ἑξάγωνον (hexágōnon)

(geometry) hexagon; a polygon with six sides and six angles


balok

balok-balok (plural)
balak (alternative)
balak (alternative)

From Javanese ꦧꦭꦺꦴꦏ꧀ (balok), from Dutch balk. Doublet of balak.

(geometry) cuboid: a parallelepiped having six rectangular faces


persegi

pêrsêgi (canonical)
persegi-persegi (plural)

Inherited from Malay persegi, from Classical Malay persegi. Equivalent to per- + segi.

(geometry) square; a polygon with four sides of equal length and four right angles


bidang

(geometry) a flat surface extending infinitely in all directions (e.g. horizontal or vertical plane)


bujur sangkar

Compound of bujur (“length”) + sangkar (“cage”).

com+

(geometry, unfashionable) square; a polygon with four sides of equal length and four right angles


segitiga

(geometry) a polygon with three sides and three angles; triangle


persegi panjang

Compound of persegi (“square”) + panjang (“long”), probably calque from Chinese 長方／长方 (“rectangular”, literally “long square”).

zh-l

(geometry) rectangle: a quadrilateral having opposing sides parallel and four right angles


belah ketupat

(geometry) a parallelogram having all sides of equal length; rhombus


keliling

keliling-keliling (plural)
keliling (root)
berkeliling (active nominative)
kelilinglah (nominative)
mengelilingi (active)
dikelilingi (passive)
kelilingi
kelilingilah
mengelilingkan (active)
dikelilingkan (passive)
kelilingkan
kelilingkanlah

From Malay keliling, from Classical Malay keliling, from Proto-Malayo-Polynesian *kuliliŋ (“round about, around, in one’s surroundings; go around”).


translasi

From Dutch translatie, from Latin trānslātiō (“transfer”).

(geometry) a geometric transformation that moves every point of a figure or a space by the same distance in a given direction


puncak

(geometry) the highest point in a plane or solid figure, relative to a base line or plane


garis tengah

id-noun

garis têngah (plural garis-garis tengah)

garis têngah (canonical)
garis-garis tengah (plural)

Compound of garis (“line”) + tengah (“centre, central”).
* Sense of diameter, calque of Dutch middellijn.

com

(geometry) diameter: any straight line between two points on the circumference of a circle that passes through the centre/center of the circle


silinder

silindêr (canonical)
silinder-silinder (plural)
sêlèndêr (alternative)

From Dutch cilinder, from French cylindre or directly from Latin cylindrus (“roller, cylinder”), from Ancient Greek κύλινδρος (kúlindros, “a cylinder, roller, roll”), from κυλίνδω (kulíndō, “to roll”).

der

(geometry) a surface created by projecting a closed two-dimensional curve along an axis intersecting the plane of the curve; a solid figure bounded by a cylinder and two parallel planes intersecting the cylinder


derajat

dêrajat (canonical)
derajat-derajat (plural)
darjah (alternative)

From Malay darjah, derajat, from Classical Malay درجه (darjah), درجه (derajat), from Arabic دَرَجَات (darajāt), plural form of دَرَجَة (daraja, “degree”).

(geometry) a unit of measurement of angle equal to ¹⁄₃₆₀ of a circle's circumference


kuadran

From Dutch kwadrant, from French quadrant, from Latin quadrāns (“fourth part of something, quarter”).

(geometry) one fourth of a circle or disc; a sector with an angle of 90°


proyeksi

proyèksi (canonical)
proyeksi-proyeksi (plural)

Internationalism, borrowed from Dutch projectie, from French projection.

(geometry) an image of an object on a surface of fewer dimensions


sudut

(geometry) a figure formed by two rays which start from a common point (a plane angle) or by three planes that intersect (a solid angle)

(geometry) the measure of such a figure. In the case of a plane angle, this is the ratio (or proportional to the ratio) of the arc length to the radius of a section of a circle cut by the two rays, centered at their common point. In the case of a solid angle, this is the ratio of the surface area to the square of the radius of the section of a sphere


jajaran genjang

[d͡ʒaˌd͡ʒa.ran ɡəɲˈd͡ʒaŋ]


astakona

astakona-astakona (plural)
setakona (alternative nonstandard)

Inherited from Malay astakona. Ultimately from Sanskrit अष्टकोण (aṣṭakoṇa, “octagon”).


ilmu ukur ruang

id-noun

ilmu ukur ruang (plural ilmu-ilmu ukur ruang)

Compound of ilmu ukur (“geometry”) + ruang (“space”), calque of Dutch ruimtemeetkunde (“solid geometry”).

clq

(geometry) spatial geometry: study of the figures measurements and properties


ilmu ukur sudut

id-noun

ilmu ukur sudut (plural ilmu-ilmu ukur sudut)

Compound of ilmu ukur (“geometry”) + sudut (“angle”), calque of Dutch hoekmeetkunde (“goniometry”).


tali busur

Compound of tali (literally “rope”) + busur (“bow; arc, arch”), calque from Japanese 弦(つる) (tsuru, “chord”, literally “bowstring”).

ja-r

(geometry) chord (straight line between two points of a curve)


juring

(geometry) sector; circular sector: part of a circle, extending to the center


tembereng

(geometry) circular segment: A region of a circle bounded by an arc and the chord connecting the endpoints of the arc


trapesium

From Dutch trapezium, from Late Latin trapezium, from Ancient Greek τραπέζιον (trapézion, “irregular quadrilateral”), diminutive of τράπεζα (trápeza, “table”).

der

(geometry) trapezium (a quadrilateral with two sides parallel)