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A triangle is a closed shape with 3 angles, 3 sides, and 3 vertices. A triangle with three vertices says P, Q, and R is represented as △PQR. It is also termed a three-sided polygon or trigon. In this mini-lesson, we will explore everything about triangles, which are commonly seen around us. If you observe the shape of signboards and your favorite sandwiches it forms the shape of a triangle.
A triangle consists of various parts. It has 3 angles, 3 sides, 3 vertices.
Every geometry shape has fixed properties to identify the relationship between different sides and angles. In this section, we will study the important triangle properties listed below.