với

head

众, 喟, 某, 貝, 買, 𠇍

vi-prep

众, 喟, 某, 貝, 買, 𠇍

众 (CJK)
喟 (CJK)
某 (CJK)
貝 (CJK)
買 (CJK)
𠇍 (CJK)
vuối (alternative)
vs (alternative)
dí (alternative)

Cognate with Muong Bi pỡi.
Probably related as etymology 1, as prepositions in Vietnamese are most often originally verbals.
The form vuối used to enjoy widespread usage in both Northern and Southern dialects, but is now completely obsolete. This form might be the diphthongized equivalent of vói (“to stretch out, to reach out”) mentioned above.

LL-Q9199 (vie)-Jessica Nguyen (Pamputt)-với.wav

góc ABC kề với góc CBD

đường thẳng d song song/vuông góc với đường thẳng e/mặt phẳng p

line d is parallel/perpendicular to line e/plane p

(geometry, after kề (“adjacent”), bù (“supplementary”), song song (“parallel”), vuông góc (“perpendicular”), etc.) to


八角

chữ Hán form of bát giác (“(geometry) an octagon”)


chiều dài

[t͡ɕiəw˨˩ zaːj˨˩]

LL-Q9199 (vie)-Jessica Nguyen (Pamputt)-chiều dài.wav

Chu vi hình chữ nhật bằng chiều dài cộng chiều rộng nhân đôi.

The perimeter of a rectangle is twice the sum of its 2 side measurements.

(geometry, of a rectangle) the length of the longer sides


đáy

head

đáy • (𡌠, 𢋠, 𣷳, 𤀐)

vi-noun

đáy • (𡌠, 𢋠, 𣷳, 𤀐)

Non-Sino-Vietnamese reading of Chinese 底 (“bottom”, SV: để).

der

SV: <i class="Latn mention" lang="vi">để</i>

vi-etym-sino

(geometry, informal, of a triangle or trapezoid) short for cạnh đáy (“base”)


parabol

[paː˧˧ ɹaː˧˧ ʔɓon˧˧]

[paː˧˧ zaː˧˧ ʔɓon˧˧]

[paː˧˧ ɹaː˧˧ ʔɓon˧˧]

[paː˧˧ ɹaː˧˧ ʔɓon˧˧]


độ

Sino-Vietnamese word from 度. For the Buddhist sense of "to help to pass through difficulties", also compare đò (“boat”), derived from Chinese 渡 (dù, “to cross”), which is a derivate of 度 (“to pass; to go over”). The meaning "period" is an extension of "about". Doublet of đạc and đo. Compare Japanese 度 (do, “degree; diopter”).

động đất mạnh 7 độ Rích-te


bằng

Sino-Vietnamese word from 平 (“level; even”); originally the Northern reading. Its distribution likely already extended beyond Northern Vietnam by the time Vietnamese started to be written down in the Latin script. See also bình, the current chief form used in compounds and the main form in placenames in Southern Vietnam.
The expected reading of the Northern form would be *bềnh, which is unattested. Compare pairs such as bệnh vs. bịnh, nghênh vs. nghinh, lệnh vs. lịnh.
It is sometimes claimed that this form is due to the taboo of the title 北平王 (Bắc Bình vương) of Quang Trung, but this is demonstrably false as bàng (as well as bàng an (→ bằng an), bàng ien (→ bằng yên)) is attested in Dictionarium Annamiticum Lusitanum et Latinum (1651), a dictionary based chiefly on the dialects of Northern Vietnam. The irregular vowel correspondence is possibly also seen in thẳng (if that were from early Middle Chinese 侹 (MC thengH) ← 侹 (OC *l̥ʰeːŋs) (ZS)).

góc A và góc B bằng nhau

angle A and angle B are equal to each other

góc A bằng góc B


trục

[t͡ɕʊwk͡p̚˧˨ʔ]

[ʈʊwk͡p̚˨˩ʔ]

[ʈʊwk͡p̚˨˩˨]

Trái Đất quay quanh trục của nó hàng ngày.

The Earth rotates [once] each day on its axis.


cạnh

head

兢, 競, 竟, 境, 梗, 𧣲

vi-noun

兢, 競, 竟, 境, 梗, 𧣲

兢 (CJK)
競 (CJK)
竟 (CJK)
境 (CJK)
梗 (CJK)
𧣲 (CJK)

LL-Q9199 (vie)-Jessica Nguyen (Pamputt)-cạnh.wav

Related to cánh (as in cánh tay (“arm”)), cf. Khmer កែង (kaeng, “elbow”). In many Austroasiatic languages, the words for "elbow" and "side, edge" have similar phonological shape.
Compare Pacoh akeng (“corner”) and talkeng (“elbow”).
Possibly related to nạnh (as in chống nạnh) through an infixed form.


tâm

Sino-Vietnamese word from 心 (“heart”). Doublet of tim.

(geometry, of a circle or sphere) center


điểm

Sino-Vietnamese word from 點. Doublet of đếm.


chữ nhật

[t͡ɕɨ˦ˀ˥ ɲət̚˧˨ʔ]

[t͡ɕɨ˧˨ ɲək̚˨˩ʔ]

[cɨ˨˩˦ ɲək̚˨˩˨]

chữ + nhật; literally, “the character 日”.

hình chữ nhật

hộp chữ nhật


diện tích

[ziən˧˨ʔ tïk̟̚˧˦]

[jiəŋ˨˩ʔ tɨt̚˦˧˥]

[jiəŋ˨˩˨ tɨt̚˦˥]

diện tích xung quanh

the part of the surface area of a solid which does not include its base


hình học

[hïŋ˨˩ hawk͡p̚˧˨ʔ]

Sino-Vietnamese word from 形學, composed of 形 (“shape”) and 學 (“study”).


hình vuông

[hïŋ˨˩ vuəŋ˧˧]

[hɨn˦˩ vuəŋ˧˧]

[hɨn˨˩ vuəŋ˧˧]

[hɨn˨˩ juəŋ˧˧]


tứ giác

[tɨ˧˦ zaːk̚˧˦]

[tɨ˨˩˦ jaːk̚˦˧˥]

[tɨ˦˥ jaːk̚˦˥]

LL-Q9199 (vie)-Penn Zero MSSJ-tứ giác.wav

Sino-Vietnamese word from 四角 (“four corners of a rectangle”), from Japanese 四角 (“square; rectangular”)


hình thoi

[hïŋ˨˩ tʰɔj˧˧]

[hɨn˦˩ tʰɔj˧˧]

[hɨn˨˩ tʰɔj˧˧]

hình (“shape”) + thoi (“weaving shuttle”)


hình thang

[hïŋ˨˩ tʰaːŋ˧˧]

[hɨn˦˩ tʰaːŋ˧˧]

[hɨn˨˩ tʰaːŋ˧˧]

(geometry) trapezoid/trapezium (with a pair of parallel sides)


tam giác

[taːm˧˧ jaːk̚˦˧˥]

LL-Q9199 (vie)-Penn Zero MSSJ-tam giác.wav

Sino-Vietnamese word from 三角 (“triangle; triangular; three horns”).


tam giác vuông

[taːm˧˧ zaːk̚˧˦ vuəŋ˧˧]

[taːm˧˧ jaːk̚˦˧˥ vuəŋ˧˧]

[taːm˧˧ jaːk̚˦˥ vuəŋ˧˧]

[taːm˧˧ jaːk̚˦˥ juəŋ˧˧]

LL-Q9199 (vie)-Penn Zero MSSJ-tam giác vuông.wav

tam giác (“triangle”) + vuông (“right”).

right-angled triangle
right-angled triangle

(geometry) right triangle/right-angled triangle


tam giác đều

[taːm˧˧ zaːk̚˧˦ ʔɗew˨˩]

[taːm˧˧ jaːk̚˦˧˥ ʔɗew˦˩]

[taːm˧˧ jaːk̚˦˥ ʔɗew˨˩]

LL-Q9199 (vie)-Penn Zero MSSJ-tam giác đều.wav

tam giác (“triangle”) + đều (“equally; evenly”)

compound

equilateral triangle
equilateral triangle


tam giác cân

[taːm˧˧ zaːk̚˧˦ kən˧˧]

[taːm˧˧ jaːk̚˦˧˥ kəŋ˧˧]

[taːm˧˧ jaːk̚˦˥ kəŋ˧˧]

LL-Q9199 (vie)-Penn Zero MSSJ-tam giác cân.wav

tam giác (“triangle”) + cân (“balanced”)


lăng trụ

[laŋ˧˧ t͡ɕu˧˨ʔ]

[laŋ˧˧ ʈʊw˨˩ʔ]

[laŋ˧˧ ʈʊw˨˩˨]


lăng trụ đứng

[laŋ˧˧ t͡ɕu˧˨ʔ ʔɗɨŋ˧˦]

[laŋ˧˧ ʈʊw˨˩ʔ ʔɗɨŋ˦˧˥]

[laŋ˧˧ ʈʊw˨˩˨ ʔɗɨŋ˦˥]


hình nón

[hïŋ˨˩ nɔn˧˦]

[hɨn˦˩ nɔŋ˦˧˥]

[hɨn˨˩ nɔŋ˦˥]


hình trụ

[hïŋ˨˩ t͡ɕu˧˨ʔ]

[hɨn˦˩ ʈʊw˨˩ʔ]

[hɨn˨˩ ʈʊw˨˩˨]

(geometry) a cylinder (a shape with a surface area)


hình lập phương

[hïŋ˨˩ ləp̚˧˨ʔ fɨəŋ˧˧]

[hɨn˦˩ ləp̚˨˩ʔ fɨəŋ˧˧]

[hɨn˨˩ ləp̚˨˩˨ fɨəŋ˧˧]

(geometry) a cube, as regards its surface areas only


hình chóp

[hïŋ˨˩ t͡ɕɔp̚˧˦]

[hɨn˦˩ t͡ɕɔp̚˦˧˥]

[hɨn˨˩ cɔp̚˦˥]


tứ diện

[tɨ˧˦ ziən˧˨ʔ]

[tɨ˨˩˦ jiəŋ˨˩ʔ]

[tɨ˦˥ jiəŋ˨˩˨]

LL-Q9199 (vie)-Penn Zero MSSJ-tứ diện.wav

Sino-Vietnamese word from 四面 (“four sides”).


góc vuông

[ɣawk͡p̚˧˦ vuəŋ˧˧]

[ɣawk͡p̚˦˧˥ vuəŋ˧˧]

[ɣawk͡p̚˦˥ vuəŋ˧˧]

[ɣawk͡p̚˦˥ juəŋ˧˧]


góc nhọn

[ɣawk͡p̚˧˦ ɲɔn˧˨ʔ]

[ɣawk͡p̚˦˧˥ ɲɔŋ˨˩ʔ]

[ɣawk͡p̚˦˥ ɲɔŋ˨˩˨]


góc tù

[ɣawk͡p̚˦˧˥ tʊw˦˩]

[ɣawk͡p̚˦˥ tʊw˨˩]


so le trong

[sɔ˧˧ lɛ˧˧ t͡ɕawŋ͡m˧˧]

[ʂɔ˧˧ lɛ˧˧ ʈawŋ͡m˧˧]

[sɔ˧˧ lɛ˧˧ ʈɔŋ˧˧]

[ʂɔ˧˧ lɛ˧˧ ʈawŋ͡m˧˧]

[sɔ˧˧ lɛ˧˧ ʈawŋ͡m˧˧]


đồng vị

[ʔɗəwŋ͡m˨˩ vi˧˨ʔ]

[ʔɗəwŋ͡m˦˩ vɪj˨˩ʔ]

[ʔɗəwŋ͡m˨˩ vɪj˨˩˨]

[ʔɗəwŋ͡m˨˩ jɪj˨˩˨]

Sino-Vietnamese word from 同位 (“par”). Compare Chinese 同位素 (đồng vị tố, “isotope”), Japanese 同位体 (dōitai, đồng vị thể, “isotope”).


bán kính

[ʔɓaːn˧˦ kïŋ˧˦]

[ʔɓaːŋ˦˧˥ kɨn˦˧˥]

[ʔɓaːŋ˦˥ kɨn˦˥]

Sino-Vietnamese word from 半徑, composed of 半 (“half”) and 徑 (“diameter”), from Japanese 半径 (hankei).


trọng tâm

[t͡ɕawŋ͡m˧˨ʔ təm˧˧]

[ʈawŋ͡m˨˩ʔ təm˧˧]

[ʈɔŋ˨˩ʔ təm˧˧]

[ʈawŋ͡m˨˩˨ təm˧˧]

Trọng tâm của bài học hôm nay là trọng tâm tam giác.

Today's lesson focuses on the centroid of triangles.


trực tâm

[t͡ɕɨk̚˧˨ʔ təm˧˧]

[ʈɨk̚˨˩ʔ təm˧˧]

[ʈɨk̚˨˩˨ təm˧˧]

Sino-Vietnamese word from 直心, composed of 直 (“straight; ortho-”) and 心 (“center”), perhaps a direct calque of a European word for "orthocenter". Unintuitively, this term has nothing to do with the point of intersection of the three đường trung trực (“segment-bisecting lines”) of the three sides of a triangle, the circumcenter, which does not have a common name in Vietnamese.


vuông

head

𣃱, 𣄇, 𣄖, 𩖫, 𪯵, 𪯾

vi-adj

𣃱, 𣄇, 𣄖, 𩖫, 𪯵, 𪯾

𣃱 (CJK)
𣄇 (CJK)
𣄖 (CJK)
𩖫 (CJK)
𪯵 (CJK)
𪯾 (CJK)

LL-Q9199 (vie)-Jessica Nguyen (Pamputt)-vuông.wav

Non-Sino-Vietnamese reading of Chinese 方 (“square”, SV: phương).

der

SV: <i class="Latn mention" lang="vi">phương</i>

vi-etym-sino

góc vuông

tam giác vuông

Đường thẳng d vuông góc với đường thẳng t.


góc bẹt

[ɣawk͡p̚˧˦ ʔɓɛt̚˧˨ʔ]

[ɣawk͡p̚˦˧˥ ʔɓɛt̚˨˩ʔ]

[ɣawk͡p̚˦˥ ʔɓɛk̚˨˩˨]


góc phụ nhau

[ɣawk͡p̚˧˦ fu˧˨ʔ ɲaw˧˧]

[ɣawk͡p̚˦˧˥ fʊw˨˩ʔ ɲaw˧˧]

[ɣawk͡p̚˦˥ fʊw˨˩˨ ɲa(ː)w˧˧]


góc kề nhau

[ɣawk͡p̚˧˦ ke˨˩ ɲaw˧˧]

[ɣawk͡p̚˦˧˥ kej˦˩ ɲaw˧˧]


góc bù nhau

[ɣawk͡p̚˧˦ ʔɓu˨˩ ɲaw˧˧]

[ɣawk͡p̚˦˧˥ ʔɓʊw˦˩ ɲaw˧˧]

[ɣawk͡p̚˦˥ ʔɓʊw˨˩ ɲa(ː)w˧˧]


góc đối đỉnh

head

góc đối đỉnh

vi-noun

góc đối đỉnh

[ɣawk͡p̚˧˦ ʔɗoj˧˦ ʔɗïŋ˧˩]

[ɣawk͡p̚˦˧˥ ʔɗoj˨˩˦ ʔɗɨn˧˨]

[ɣawk͡p̚˦˥ ʔɗoj˦˥ ʔɗɨn˨˩˦]

(geometry) vertical angles; opposite angles


đường tròn nội tiếp

[ʔɗɨəŋ˨˩ t͡ɕɔn˨˩ noj˧˨ʔ tiəp̚˧˦]

[ʔɗɨəŋ˦˩ ʈɔŋ˦˩ noj˨˩ʔ tiəp̚˦˧˥]

[ʔɗɨəŋ˨˩ ʈɔŋ˨˩ noj˨˩˨ tip̚˦˥]

Compare Chinese 內接圓 /内接圆 (nội tiếp viên), Japanese 内接円 (naisetsuen), Korean 내접원 (naejeobwon).


đường tròn bàng tiếp

[ʔɗɨəŋ˨˩ t͡ɕɔn˨˩ ʔɓaːŋ˨˩ tiəp̚˧˦]

[ʔɗɨəŋ˦˩ ʈɔŋ˦˩ ʔɓaːŋ˦˩ tiəp̚˦˧˥]

[ʔɗɨəŋ˨˩ ʈɔŋ˨˩ ʔɓaːŋ˨˩ tip̚˦˥]

Compare Japanese 傍接円 (bōsetsuen, bàng tiếp viên), Korean 방접원 (bangjeobwon).


đường tròn ngoại tiếp

[ʔɗɨəŋ˨˩ t͡ɕɔn˨˩ ŋwaːj˧˨ʔ tiəp̚˧˦]

[ʔɗɨəŋ˦˩ ʈɔŋ˦˩ ŋwaːj˨˩ʔ tiəp̚˦˧˥]

[ʔɗɨəŋ˨˩ ʈɔŋ˨˩ ŋwaːj˨˩˨ tip̚˦˥]

Compare Chinese 外接圓 /外接圆 (ngoại tiếp viên), Japanese 外接円 (gaisetsuen), Korean 외접원 (oejeobwon).


đều

Non-Sino-Vietnamese reading of Chinese 調 (“harmonious; matching”, SV: điều).

der

SV: <i class="Latn mention" lang="vi">điều</i>


song song

[ʂawŋ͡m˧˧ ʂawŋ͡m˧˧]

[sɔŋ˧˧ sɔŋ˧˧]

[ʂawŋ͡m˧˧ ʂawŋ͡m˧˧]

LL-Q9199 (vie)-Penn Zero MSSJ-song song.wav

Sino-Vietnamese word from 雙雙; a duplication of song (“double”).

Trong cùng một mặt phẳng, hai đường thẳng song song không có điểm chung.

On a given plane, parallel lines do not share any points.


cụt

From Proto-Austroasiatic *gutˀ (“to cut short”). Cognate with Arem kùːt ("to chop, to cut short"), Mon ကုတ် (“to cut off”), Khmu kut ("to be shortened").


tiếp xúc

[tiəp̚˧˦ sʊwk͡p̚˧˦]

[tiəp̚˦˧˥ sʊwk͡p̚˦˧˥]

(geometry, of a circle or a line) to touch


vuông góc

[vuəŋ˧˧ ɣawk͡p̚˧˦]

[vuəŋ˧˧ ɣawk͡p̚˦˧˥]

[vuəŋ˧˧ ɣawk͡p̚˦˥]

[juəŋ˧˧ ɣawk͡p̚˦˥]

2 đường thẳng vuông góc

2 perpendicular (coplanar) lines or 2 orthogonal (non-coplanar) lines

vuông góc với

perpendicular to; orthogonal to; at right angles to

Trục quay của đĩa vuông góc với mặt phẳng của nó (hình 367) và lệch khỏi khối tâm một đoạn bằng a.

1979, S.M. Targ, translated by Phạm Huyền, Giáo trình giản yếu cơ học lý thuyết, NXB đại học và trung học chuyên nghiệp Hà Nội, page 436:

The rotational axis of a disk is perpendicular to its plane (figure 367) and a distance a away from its center.


đỉnh

head

đỉnh • (嵿, 頂)

vi-noun

đỉnh • (嵿, 頂)


chiếu

phép chiếu song song


vòng tròn

[vawŋ͡m˨˩ t͡ɕɔn˨˩]

[vawŋ͡m˦˩ ʈɔŋ˦˩]

[vɔŋ˦˩ ʈɔŋ˦˩]

[vawŋ͡m˨˩ ʈɔŋ˨˩]

[jawŋ͡m˨˩ ʈɔŋ˨˩]

LL-Q9199 (vie)-Jessica Nguyen (Pamputt)-vòng tròn.wav


mặt phẳng

[mat̚˧˨ʔ faŋ˧˩]

[mak̚˨˩ʔ faŋ˧˨]

[mak̚˨˩˨ faŋ˨˩˦]


chu vi

[t͡ɕu˧˧ vi˧˧]

[t͡ɕʊw˧˧ vɪj˧˧]

[cʊw˧˧ vɪj˧˧]

[cʊw˧˧ jɪj˧˧]

Sino-Vietnamese word from 周圍, composed of 周 (“circumference”) and 圍 (“to surround”).

vi-etym-sino

chu vi hình vuông

chu vi hình tròn


chiều cao

[t͡ɕiəw˨˩ kaːw˧˧]

chiều (“dimension”) + cao (“tall; high”)


đường thẳng

[ʔɗɨəŋ˨˩ tʰaŋ˧˩]

[ʔɗɨəŋ˦˩ tʰaŋ˧˨]

[ʔɗɨəŋ˨˩ tʰaŋ˨˩˦]


ngoại tiếp

[ŋwaːj˧˨ʔ tiəp̚˧˦]

[ŋwaːj˨˩ʔ tiəp̚˦˧˥]

[ŋwaːj˨˩˨ tip̚˦˥]

Sino-Vietnamese word from 外接, composed of 外 (“out-; ex-”) and 接 (“to touch”)


đường cao

[ʔɗɨəŋ˨˩ kaːw˧˧]

[ʔɗɨəŋ˦˩ kaːw˧˧]

[ʔɗɨəŋ˨˩ kaːw˧˧]


trung điểm

[t͡ɕʊwŋ͡m˧˧ ʔɗiəm˧˩]

[ʈʊwŋ͡m˧˧ ʔɗiəm˧˨]

[ʈʊwŋ͡m˧˧ ʔɗim˨˩˦]

Sino-Vietnamese word from 中點, composed of 中 (“middle”) and 點 (“point”)


đường kính

đường (“path”) + kính (“path; diameter”, 徑).

af

[ʔɗɨəŋ˨˩ kïŋ˧˦]

[ʔɗɨəŋ˦˩ kɨn˦˧˥]

[ʔɗɨəŋ˨˩ kɨn˦˥]


vectơ pháp tuyến

[vɛk̚˧˦ təː˧˧ faːp̚˧˦ twiən˧˦]

[vɛk̚˦˧˥ təː˧˧ faːp̚˦˧˥ twiəŋ˦˧˥]

[vɛk̚˦˥ təː˧˧ faːp̚˦˥ t⁽ʷ⁾iəŋ˦˥]

[jɛk̚˦˥ təː˧˧ faːp̚˦˥ t⁽ʷ⁾iəŋ˦˥]

vectơ (“vector”) + Chinese 法線 /法线 (fǎxiàn, “normal”)


tiếp tuyến

[tiəp̚˦˧˥ twiəŋ˦˧˥]

[tip̚˦˥ t⁽ʷ⁾iəŋ˦˥]

Sino-Vietnamese word from 接線, composed of 接 (“to touch”) and 線 (“line”).


đường tròn

[ʔɗɨəŋ˨˩ t͡ɕɔn˨˩]

[ʔɗɨəŋ˦˩ ʈɔŋ˦˩]

[ʔɗɨəŋ˨˩ ʈɔŋ˨˩]


đường cônic

[ʔɗɨəŋ˨˩ ko˧˧ nïk̟̚˧˧]

[ʔɗɨəŋ˦˩ kow˧˧ nïk̟̚˧˧]

[ʔɗɨəŋ˨˩ kow˧˧ nïk̟̚˧˧]

Either from đường (“line”) + French conique, or a calque of English conic section.


elip

[ʔɛ˧˧ lip̚˧˦]

[ʔe˧˧ lip̚˧˦]

[ʔɛ˧˧ lip̚˦˧˥]

[ʔej˧˧ lip̚˦˧˥]

[ʔɛ˧˧ lip̚˦˥]


hypebol

[hi˧˧ pɛ˧˧ ʔɓon˧˧]

[hi˧˧ pɛk̚˧˦ ʔɓon˧˧]

[hi˧˧ pɛk̚˧˨ʔ ʔɓon˧˧]

[hɪj˧˧ pɛ˧˧ ʔɓon˧˧]

[hɪj˧˧ pɛk̚˦˧˥ ʔɓon˧˧]

[hɪj˧˧ pɛk̚˨˩ʔ ʔɓon˧˧]

[hɪj˧˧ pɛ˧˧ ʔɓon˧˧]

[hɪj˧˧ pɛk̚˦˥ ʔɓon˧˧]

[hɪj˧˧ pɛk̚˨˩˨ ʔɓon˧˧]

From French hyperbole. This spelling is sanctioned by the Ministry of Education and Training, but the actual pronunciation follows the original French one, with the French uvular /ʁ/ regularly rendered as the velar /k/, although the letter h is not silent.


cạnh huyền

[kɛɲ˨˩ʔ hwiəŋ˦˩]

[kan˨˩˨ wiəŋ˨˩]

Perhaps from cạnh (“side”) + Chinese 弦 (“bowstring”)

Định lí Pi-ta-go: bình phương cạnh huyền bằng tổng các bình phương của hai cạnh góc vuông.

The Pythagorean theorem: the square of the hypotenuse equals the sum of the squares of the cathetuses.


diện tích xung quanh

[ziən˧˨ʔ tïk̟̚˧˦ sʊwŋ͡m˧˧ kwajŋ̟˧˧]

[jiəŋ˨˩ʔ tɨt̚˦˧˥ sʊwŋ͡m˧˧ kwɛɲ˧˧]

[jiəŋ˨˩˨ tɨt̚˦˥ sʊwŋ͡m˧˧ wan˧˧]

diện tích (“area”) + xung quanh (“surrounding”)

af

hình hộp chữ nhật
hình hộp chữ nhật#Vietnamese

(geometry) the part of the surface area of a solid (in this context, termed a hình (literally “shape”)) which does not include its bases, such as that of a hình chóp (“pyramid”), a hình nón (“cone”), a hình lăng trụ (“prism”), a hình trụ (“cylinder”) or a hình hộp chữ nhật (“cuboid”)


diện tích toàn phần

[ziən˧˨ʔ tïk̟̚˧˦ twaːn˨˩ fən˨˩]

[jiəŋ˨˩ʔ tɨt̚˦˧˥ twaːŋ˦˩ fəŋ˦˩]

[jiəŋ˨˩˨ tɨt̚˦˥ t⁽ʷ⁾aːŋ˨˩ fəŋ˨˩]

diện tích (“area”) + toàn phần (“whole”)

(geometry) the surface area of a solid (in this context, termed a hình (literally “shape”))


chiều rộng

[t͡ɕiəw˨˩ zəwŋ͡m˧˨ʔ]

[t͡ɕiw˦˩ ʐəwŋ͡m˨˩ʔ]

[ciw˨˩ ɹəwŋ͡m˨˩˨]

chiều (“dimension”) + rộng (“wide; broad”).

(geometry, of a rectangle) the length of the shorter sides


đồng dạng

[ʔɗəwŋ͡m˨˩ zaːŋ˧˨ʔ]

[ʔɗəwŋ͡m˦˩ jaːŋ˨˩ʔ]

[ʔɗəwŋ͡m˨˩ jaːŋ˨˩˨]

Sino-Vietnamese word from 同樣, composed of 同 (“same”) and 樣 (“form”).


đoạn thẳng

[ʔɗwaːn˧˨ʔ tʰaŋ˧˩]

[ʔɗwaːŋ˨˩ʔ tʰaŋ˧˨]

[ʔɗwaːŋ˨˩˨ tʰaŋ˨˩˦]


giao tuyến

[jaːw˧˧ twiəŋ˦˧˥]

[jaːw˧˧ t⁽ʷ⁾iəŋ˦˥]

Sino-Vietnamese word from 交線, composed of 交 (“to intersect”) and 線 (“line”).


giao điểm

[zaːw˧˧ ʔɗiəm˧˩]

[jaːw˧˧ ʔɗiəm˧˨]

[jaːw˧˧ ʔɗim˨˩˦]

Sino-Vietnamese word from 交點, composed of 交 (“to intersect”) and 點 (“point”).


đường trung trực

[ʔɗɨəŋ˨˩ t͡ɕʊwŋ͡m˧˧ t͡ɕɨk̚˧˨ʔ]

[ʔɗɨəŋ˦˩ ʈʊwŋ͡m˧˧ ʈɨk̚˨˩ʔ]

[ʔɗɨəŋ˨˩ ʈʊwŋ͡m˧˧ ʈɨk̚˨˩˨]

đường (“line”) + Chinese 中 (“middle”) + 直 (zhí, “straight”). Not to be confused with trung tuyến (“median”). No relation to Chinese 忠直 (trung trực, “loyal and upright”), or trực tâm (“orthocenter”).


đường phân giác

[ʔɗɨəŋ˨˩ fən˧˧ zaːk̚˧˦]

[ʔɗɨəŋ˦˩ fəŋ˧˧ jaːk̚˦˧˥]

[ʔɗɨəŋ˨˩ fəŋ˧˧ jaːk̚˦˥]

LL-Q9199 (vie)-Penn Zero MSSJ-đường phân giác.wav

đường (“line”) + Chinese 分 (“to divide; to split”) + Chinese 角 (“angle”), or Chinese 分角 (“subangle”).


trung tuyến

[t͡ɕʊwŋ͡m˧˧ twiən˧˦]

[ʈʊwŋ͡m˧˧ twiəŋ˦˧˥]

[ʈʊwŋ͡m˧˧ t⁽ʷ⁾iəŋ˦˥]

Sino-Vietnamese word from 中線 (“center line”). Not to be confused with đường trung trực (“segment bisector”).


đồng tâm

[ʔɗəwŋ͡m˨˩ təm˧˧]

[ʔɗəwŋ͡m˦˩ təm˧˧]

[ʔɗəwŋ͡m˨˩ təm˧˧]

Sino-Vietnamese word from 同心, composed of 同 (“same”) and 心 (“center”).


đồng phẳng

[ʔɗəwŋ͡m˨˩ faŋ˧˩]

[ʔɗəwŋ͡m˦˩ faŋ˧˨]

[ʔɗəwŋ͡m˨˩ faŋ˨˩˦]

đồng- (“co-”) + phẳng (“flat”) or blend of đồng- (“co-”) + mặt phẳng (“plane”)


kề

cạnh kề

Sin bằng cạnh đối chia cho cạnh kề.

The sine is the length of the opposite side over that of the adjacent side.


lục giác

[lʊwk͡p̚˧˨ʔ zaːk̚˧˦]

[lʊwk͡p̚˨˩ʔ jaːk̚˦˧˥]

[lʊwk͡p̚˨˩˨ jaːk̚˦˥]

LL-Q9199 (vie)-Penn Zero MSSJ-lục giác.wav

Sino-Vietnamese word from 六角, composed of 六 (“six”) and 角 (“angles”).


ngũ giác

[ŋu˦ˀ˥ zaːk̚˧˦]

[ŋʊw˧˨ jaːk̚˦˧˥]

[ŋʊw˨˩˦ jaːk̚˦˥]

LL-Q9199 (vie)-Penn Zero MSSJ-ngũ giác.wav

Sino-Vietnamese word from 五角, composed of 五 (“five”) and 角 (“angles”).


bát giác

[ʔɓaːt̚˧˦ zaːk̚˧˦]

[ʔɓaːk̚˦˧˥ jaːk̚˦˧˥]

[ʔɓaːk̚˦˥ jaːk̚˦˥]

LL-Q9199 (vie)-Penn Zero MSSJ-bát giác.wav

Sino-Vietnamese word from 八角, composed of 八 (“eight”) and 角 (“angles”).


cửu giác

[kɨw˧˨ jaːk̚˦˧˥]

[kɨw˨˩˦ jaːk̚˦˥]

LL-Q9199 (vie)-Penn Zero MSSJ-cửu giác.wav

Sino-Vietnamese word from 九角, composed of 九 (“nine”) and 角 (“angles”).


thập giác

[tʰəp̚˧˨ʔ zaːk̚˧˦]

[tʰəp̚˨˩ʔ jaːk̚˦˧˥]

[tʰəp̚˨˩˨ jaːk̚˦˥]

LL-Q9199 (vie)-Penn Zero MSSJ-thập giác.wav

Sino-Vietnamese word from 十角, composed of 十 (“ten”) and 角 (“angles”).


thất giác

[tʰət̚˧˦ zaːk̚˧˦]

[tʰək̚˦˧˥ jaːk̚˦˧˥]

[tʰək̚˦˥ jaːk̚˦˥]

LL-Q9199 (vie)-Penn Zero MSSJ-thất giác.wav

Sino-Vietnamese word from 七角, composed of 七 (“seven”) and 角 (“angles”).


tiếp điểm

[tiəp̚˧˦ ʔɗiəm˧˩]

[tiəp̚˦˧˥ ʔɗiəm˧˨]

[tip̚˦˥ ʔɗim˨˩˦]

Sino-Vietnamese word from 接點, composed of 接 (“to touch”) and 點 (“point”).


phương trình tổng quát

[fɨəŋ˧˧ t͡ɕïŋ˨˩ təwŋ͡m˧˩ kwaːt̚˧˦]

[fɨəŋ˧˧ ʈɨn˦˩ təwŋ͡m˧˨ kwaːk̚˦˧˥]

[fɨəŋ˧˧ ʈɨn˨˩ təwŋ͡m˨˩˦ waːk̚˦˥]


hình chiếu

[hïŋ˨˩ t͡ɕiəw˧˦]

[hɨn˦˩ t͡ɕiw˨˩˦]

tam giác A'B'C' là hình chiếu của tam giác ABC

triangle A'B'C' is a projection of triangle ABC


đẳng chu

[ʔɗaŋ˧˩ t͡ɕu˧˧]

[ʔɗaŋ˧˨ t͡ɕʊw˧˧]

[ʔɗaŋ˨˩˦ cʊw˧˧]

Sino-Vietnamese word from 等 (“equal”) and 周 (“circumference”).

(geometry) isometric (showing equality in dimensions)


điểm uốn

[ʔɗiəm˧˩ ʔuən˧˦]

[ʔɗiəm˧˨ ʔuəŋ˦˧˥]

[ʔɗim˨˩˦ ʔuəŋ˦˥]

Đồ thị có hai điểm uốn.

The graph contains two inflection points.

point of inflection
point of inflection#English

(calculus, geometry) a point of inflection


cát tuyến

[kaːk̚˦˧˥ twiəŋ˦˧˥]

[kaːk̚˦˥ t⁽ʷ⁾iəŋ˦˥]


nội tiếp

[noj˨˩ʔ tiəp̚˦˧˥]


đường chéo

[ʔɗɨəŋ˨˩ t͡ɕɛw˧˦]

[ʔɗɨəŋ˦˩ t͡ɕɛw˨˩˦]

[ʔɗɨəŋ˨˩ cɛw˦˥]


đường sinh

[ʔɗɨəŋ˨˩ sïŋ˧˧]

[ʔɗɨəŋ˦˩ ʂɨn˧˧]

[ʔɗɨəŋ˦˩ sɨn˧˧]

[ʔɗɨəŋ˨˩ ʂɨn˧˧]

[ʔɗɨəŋ˨˩ sɨn˧˧]

đường (“line”) + sinh (“to give birth, to generate”). Calque of English generatrix.


lục lăng

[lʊwk͡p̚˧˨ʔ laŋ˧˧]

[lʊwk͡p̚˨˩ʔ laŋ˧˧]

[lʊwk͡p̚˨˩˨ laŋ˧˧]

LL-Q9199 (vie)-Penn Zero MSSJ-lục lăng.wav

Sino-Vietnamese word from 六 (“six”) and 棱 (“arris, edge, corner”).


lục lăng

[lʊwk͡p̚˧˨ʔ laŋ˧˧]

[lʊwk͡p̚˨˩ʔ laŋ˧˧]

[lʊwk͡p̚˨˩˨ laŋ˧˧]


đối đỉnh

[ʔɗoj˧˦ ʔɗïŋ˧˩]

[ʔɗoj˨˩˦ ʔɗɨn˧˨]

[ʔɗoj˦˥ ʔɗɨn˨˩˦]


tam giác nhọn

[taːm˧˧ zaːk̚˧˦ ɲɔn˧˨ʔ]

[taːm˧˧ jaːk̚˦˧˥ ɲɔŋ˨˩ʔ]

[taːm˧˧ jaːk̚˦˥ ɲɔŋ˨˩˨]


tam giác tù

[taːm˧˧ jaːk̚˦˧˥ tʊw˦˩]

[taːm˧˧ jaːk̚˦˥ tʊw˨˩]


đường trung bình

[ʔɗɨəŋ˨˩ t͡ɕʊwŋ͡m˧˧ ʔɓïŋ˨˩]

[ʔɗɨəŋ˦˩ ʈʊwŋ͡m˧˧ ʔɓɨn˦˩]

[ʔɗɨəŋ˨˩ ʈʊwŋ͡m˧˧ ʔɓɨn˨˩]

đường (“line”) + trung bình (“average, middle”).

com

(geometry, of a triangle or a trapezoid) midline


ê-líp-xô-ít

[ʔe˧˧ lip̚˧˦ so˧˧ ʔit̚˧˦]

[ʔej˧˧ lip̚˦˧˥ sow˧˧ ʔit̚˦˧˥]

[ʔej˧˧ lip̚˦˥ sow˧˧ ʔɨt̚˦˥]