Finesentence mobile logo
Sign in Login / Register

Triangle Meaning: Definition, Examples, and Translations

๐Ÿ”บ
Add to dictionary

triangle

[หˆtraษช.รฆล‹.ษกษ™l ]

Definition

Context #1 | Noun

geometric shape

A triangle is a three-sided polygon that consists of three edges and three vertices. The sum of the internal angles of a triangle always equals 180 degrees. Triangles can be classified based on their angle measures as acute, right, or obtuse, and by the length of their sides as equilateral, isosceles, or scalene. Triangles are fundamental in various fields, including mathematics, engineering, and architecture.

Synonyms

triangular shape, trigon.

Examples of usage

  • The triangle has three sides.
  • We studied different types of triangles in math class.
  • The roof was shaped like a triangle.

Translations

To see the translation, please select a language from the options available.

Interesting Facts

Mathematics

  • Triangles can be classified into types like isosceles (two sides are the same), equilateral (all sides are the same), and scalene (all sides are different).
  • The sum of the angles in any triangle always adds up to 180 degrees, which is a fundamental rule in geometry.

Art

  • In many cultures, triangles are used in art and design to create balance, harmony, and stability.
  • The triangular shape is often seen in famous paintings, like the pyramids in Egyptian art, symbolizing strength and permanence.

Science

  • Triangles are key in engineering and architecture, forming the basis for strong structures like bridges.
  • In physics, the concept of triangulation helps in locating positions by measuring angles from different points.

Culture

  • In many cultures, the triangle symbolizes change, as it can point in different directions, representing the dynamics of life.
  • The triangle is often associated with the Holy Trinity in Christian symbolism, representing unity and balance.

Origin of 'triangle'

Main points about word origin

  • The word 'triangle' comes from the Latin 'triangulus', which means 'three corners'.
  • The prefix 'tri-' means 'three', so it helps describe the triangleโ€™s three sides.

The term 'triangle' comes from the Latin word 'triangulum,' which means 'three-cornered.' This Latin term is derived from the prefix 'tri-' meaning 'three' and 'angulus' meaning 'angle.' The use of the triangle in geometry dates back to ancient civilizations, including the Egyptians and Greeks, who utilized its properties in construction, astronomy, and mathematics. The triangle's importance is also highlighted in the study of trigonometry, which is the branch of mathematics that deals with the relationships between the angles and sides of triangles. Over centuries, the triangle has remained a central figure in both theoretical and applied mathematics.

Word Frequency Rank

At #6,452 in frequency, this word belongs to advanced vocabulary. It's less common than core vocabulary but important for sophisticated expression.