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  1. Triangle - Wikipedia

    A triangle has three internal angles, each one bounded by a pair of adjacent edges; the sum of angles of a triangle always equals a straight angle (180 degrees or π radians). The triangle is a plane figure …

  2. Triangl Swimwear. Exclusively Online. Worldwide Shipping.

    Triangl Swimwear available exclusively from our website. Italian-made Velvet, French Jacquard + Signature Neoprene.

  3. Triangles - Equilateral, Isosceles and Scalene

    A triangle has three sides and three angles. The three angles always add to 180°. There are three special names given to triangles that tell how...

  4. Triangles - Definition, Properties, Formula | Triangle Shape

    Let us read more about the triangle shape, the definition of a triangle, the parts of a triangle, the kinds of triangles and the properties of triangles on this page.

  5. Triangle | Definition & Facts | Britannica

    Dec 5, 2025 · A triangle is a three-sided polygon, formed by three line segments, whose end points intersect at points known as the vertices.

  6. TRIANGLE Definition & Meaning - Merriam-Webster

    The meaning of TRIANGLE is a polygon having three sides. How to use triangle in a sentence.

  7. Triangles | Geometry (all content) | Math | Khan Academy

    Test your understanding of Triangles with these 10 questions. You probably like triangles. You think they are useful. They show up a lot. What you'll see in this topic is that they are far more magical and …

  8. Rules of a Triangle- Sides, angles, Exterior angles, Degrees and other ...

    To explore the truth of this rule, try Math Warehouse's interactive triangle, which allows you to drag around the different sides of a triangle and explore the relationship between the angles and sides.

  9. TRIANGLE | English meaning - Cambridge Dictionary

    A triangle consists of a set of three distinct vertices, specified in some order.

  10. Triangle - Types and properties - AllMath

    Feb 1, 2024 · A triangle is a fundamental geometric shape composed of three-line segments that intersect at three distinct points. This article aims to cover the definition, types, properties, formulas …