**A triangle is a polygon with three sides, three edges and three vertices. It is one of the basic shapes in geometry. The sum of internal angles of a triangle equal to 180° and properties are also present to explain the triangle characteristics. A triangle with vertices A, B, and C is denoted. The sum of the length of two sides of a triangle is always more significant than the length of the third side. An Exterior angle of a triangle will always be equal to the sum of the two opposite interior angles of the Triangle. It is called the Exterior angle property of a triangle. Find the value of “x”. X is the exterior angle of the Triangle, and the two given angles are the opposite interior angles.
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