A triangle is a polygon with three corners and three sides, one of the basic shapes in geometry. The corners, also called vertices, are zero- dimensional points while the sides connecting …

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

Triangle definition: a closed plane figure having three sides and three angles.. See examples of TRIANGLE used in a sentence.

Jul 23, 2025 · It is the simplest polygon in geometry, and the sum of its interior angles is always 180°. A triangle is formed by three line segments (edges) that intersect at three vertices, …

A triangle is a shape with three sides. The cloth was decorated with triangles of different colours. We cut some triangles of cheese. To make a star, put two triangles together. Her earrings …

Triangle A triangle is a closed shape with 3 angles, 3 sides, and 3 vertices. A triangle with three vertices P, Q, and R is represented as PQR. The most commonly seen examples of triangles …

Sep 19, 2025 · A triangle is a three-sided polygon, formed by three line segments, whose end points intersect at points known as the vertices.

Definition of triangle noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

A triangle is a three-sided polygon that has 3 angles, and 3 vertices. Learn the definition of triangles, their types, parts, properties using a variety of examples.

1. a closed plane figure having three sides and three angles. 3. any three-cornered or three-sided figure, object, or piece: a triangle of land. 4. a musical percussion instrument that consists of a …