Angle Between Two Lines

Angle between two lines

graph TB A[Angle between two lines] A --> B[Formula] B --> C1[Tan(theta) = |(m2 - m1) / (1 + m1*m2)|] A --> D[Where] D --> E1[m1 and m2 are the slopes of the lines] D --> E2[theta is the angle between the lines] A --> F[Examples] F --> G1[Example 1] F --> G2[Example 2]