triangle noun tri· an· gle ˈtrī-ˌaŋ-gəl 1 : a figure that has three sides and three angles : a polygon that has three sides 2 : a percussion instrument made of a steel rod bent into a triangle open WcgeKlvxIMLS WebA triangle is a polygon that has three vertices. A vertex is a point where two or more curves, lines, or edges meet; in the case of a triangle, the three vertices are joined by three line segments called edges. A triangle is usually referred to by its vertices. Hence, a triangle with vertices a, b, and c is typically denoted as Δabc. YKve6xmpxcR2 A triangle is a closed, 2-dimensional shape with 3 sides, 3 angles, and 3 vertices. A triangle is also a polygon . The above figure is a triangle denoted as ABC. Examples of Triangles Some reude sandwiches, traffic signs, cloth hangers, and a rack in billiards. Non-examples of Triangles etTzUsiUWEPc A triangle is a polygon that has three vertices. A vertex is a point where two or more curves, lines, or edges meet; in the case of a triangle, the three vertices are joined by three line segments called edges. A triangle is usually referred to by its vertices. Hence, a triangle with vertices a, b, and c is typically denoted as Δabc. cFai14JCLIVB
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