A triangle is a closed polygon having three sides, vertices and angles. PQR is the symbol for a triangle having three vertices, P, Q, and R. Signboards and sandwiches in the shape of a triangle are two of the most common instances of triangles.the definition of a triangle?A triangle is a three-sided closed polygon with three interior angles. It is one of the most fundamental shapes in geometry, consisting of three vertices linked together and symbolized by the symbol △. The sides and angles of a triangle are used to classify it into several sorts.Theorems of TrianglesThere are various sorts of triangles based on the length of the sides, such as the scalene triangle, isosceles triangle, and equilateral triangle, as well as triangles depending on the degree of the angles, such as the acute angle triangle, right-angled triangle, and obtuse angle triangle.Despite the fact that there are several Geometry Theorems on Triangles, let us look at some basic geometry theorems:Theorem 1: The total...
