in a geometric figure two intersecting lines create four angles, where 1 and 3 are a vertical pair. if m1 = (3x - 25) and m3 = 104, what is the value of x

1 answer

Since angles 1 and 3 are a vertical pair, they are congruent to each other. Therefore, we can set m1 equal to m3:

3x - 25 = 104

Adding 25 to both sides:

3x = 129

Dividing by 3:

x = 43

Therefore, the value of x is 43.