Definition Synonyms
Definition of triangle - Reverso English Dictionary
Noun
1.
mathematicspolygon with three sides and angles
- The triangle has three equal sides.
2.
musicthree-sided metal percussion instrument
- She played the triangle in the orchestra.
3.
relationshipsituation involving three people or parties
- Their friendship formed a complicated triangle.
4.
mathtool for drawing or measuring angles
- He used a triangle to draw the blueprint.
5.
cue sportsequipment for arranging billiard balls
- He racked the balls with a triangle.
6.
rail transportTECH. UK triangular formation of railway tracksTECH. UK
- The train switched tracks at the triangle.
Images of triangle

polygon with three sides and angles 
three-sided metal percussion instrument 
equipment for arranging billiard balls 
triangular formation of railway tracks
Expressions with triangle
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romantic relationship involving three people, often with jealousy
The movie is about an eternal triangle.
romantic relationship involving three people
The movie revolves around a complex love triangle.
triangular sign used to alert drivers to potential hazards
He placed the warning triangle behind his car to signal the breakdown.
three elements needed for a fire: fuel, oxygen, heat
Understanding the fire triangle is crucial for fire safety.
three-sided regular polygon
The equilateral triangle is a basic shape in geometry.
triangle with one angle of 90 degrees
In geometry class, we learned how to calculate the area of a right triangle..
triangle with one angle of 90 degrees
In geometry class, we learned how to calculate the area of a right-angled triangle..
triangle having no right angle
An oblique triangle has angles that are not 90 degrees.
triangle with all angles less than 90 degrees
In an acute triangle, each angle is less than 90 degrees.
triangle with at least two equal sides
The isosceles triangle has two sides of 5 cm each.
triangle with one angle greater than 90 degrees
In geometry class, we learned how to calculate the area of an obtuse triangle..
triangle with all angles less than 90 degrees
The acute-angled triangle has three sharp corners.
triangle with one angle over 90 degrees
The obtuse-angled triangle had angles of 30, 60, and 90 degrees.
triangle of numbers showing binomial coefficients
Pascal's triangle is useful in binomial expansions.
triangle with all sides of different lengths
The scalene triangle has sides measuring 3 cm, 4 cm, and 5 cm.
triangle with all angles equal
In an equiangular triangle, each angle measures 60 degrees.
area of the upper thigh where major blood vessels pass
The surgeon made an incision in the femoral triangle to access the artery..
triangular area on a sailboat for setting sails
The crew adjusted the sails in the fore triangle.
graphical representation of deadweight loss in a market
The Harberger triangle shows the inefficiency caused by the tax.
triangle with sides forming a Pythagorean triple
The 3, 4, 5 triangle is a Pythagorean triangle.
shape with three circular arcs of constant width
The Reuleaux triangle can rotate inside a square.
triangle on a sphere with great circle arcs
The spherical triangle is used in celestial navigation.
rule for norms or distances: a direct path never exceeds two-step path
The triangle inequality guarantees the direct route is never longer.
yoga posture with legs apart and arms extended
She held the triangle pose for several breaths.
Origin of triangle
Latin, triangulum (three-cornered)
Terms with triangle included in their meaning
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shape
shaped like a triangle
food
piece of food shaped like a triangle
billiards
triangle for aligning billiard balls
mathematics
side of a right triangle
geometry
side facing a specified angle in a triangle
geometry
angle at the apex of an isosceles triangle or cone
mathematics
side next to the right angle in a triangle
trigonometry
ratio of opposite side to hypotenuse in a triangle
geometry triangle
having all angles less than 90 degrees
trigonometry
ratio of adjacent side to hypotenuse in a triangle
triangle
having two sides of equal length
trigonometry
reciprocal of cosine in a right triangle
mathematics
forming or involving a triangle
shape
object resembling a triangle
geometry
line segment from triangle vertex to opposite side midpoint
shape
shaped like a triangle
triangle shape
formed into a triangle shape
typography
symbol of three asterisks in a triangle
mathematics
either side of a right triangle not the hypotenuse
recreation
game with three pins arranged in a triangle
right triangle
ratio of hypotenuse to opposite side
summer triangle
part of the Summer Triangle with Vega and Altair
mathematics
longest side of a right triangle
bicycle
type of bicycle frame with looped rear triangle
Examples of triangle in a sentence
He drew a triangle on the chalkboard. The triangle added a unique sound to the band. He learned to play the triangle in music class. The love triangle caused tension among the group. Negotiations turned into a political triangle. Use a triangle to check whether the corner is square.
The student measured the angle with a triangle. The triangle was missing from the pool table. He carefully placed the balls inside the triangle. The engineers designed a new triangle for better train routing. A triangle was constructed to facilitate train reversals.
View all translations of triangle
Click below to see the appropriate translations facing each meaning.
- French:triangle, trio, ...
- German:Dreieck, Triangel, ...
- Italian:triangolo, triangolo amoroso, ...
- Spanish:triángulo, escuadra, ...
- Portuguese:triângulo, triângulo amoroso, ...
- Chinese:三角形, 三角铁, ...
- Japanese:三角形, 三角形の楽器, ...
- Arabic:مُثَلَّث, علاقة ثلاثية, ...
- Hebrew:מְשׁוּלָּשׁ, טְרַיְאַנְגֶּל, ...
- Russian:треугольник, тройственный союз, ...
- Ukrainian:трикутник, любовний трикутник, ...
- Hindi:त्रिभुज, त्रिकोण, ...

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