In a geometric figure two intersecting lines create four angles, where angle 1 and angle 3 are a vertical pair. of m-angle 1 = (3x - 25)° and m-angle 3 = 104, what is the value of x?

Answer 1

Since angle 1 and angle 3 are a vertical pair, they are congruent to each other. Therefore, we can set up the equation:

3x - 25 = 104

Now, solve for x:

3x = 129
x = 43

Therefore, the value of x is 43.