The two corners of a triangle have a magnitude of 25 degrees, define the magnitude of 3 angles.

To solve this problem, we introduce a conditional variable “X”, through which we denote the value of the third angle of the triangle.

Let’s take into account the fact that the sum of the angles of the triangle is 180 degrees.

Then, based on the data of the problem, we will compose the following equation: X = 180 – 25 – 25.

Solving this equation, we get X equal to 130 degrees.

Answer: The third angle of the triangle is 130 degrees.