Angle between Two Lines

The angle between two lines is the smaller of the angles formed by the intersection of the two lines. The angle can be obtained from:

Angle between Two Lines

1. Their slopes

Angle between Two Lines

2. Their direction vectors

Angle between Two Lines


Find the angle between the lines r and s, if their directional vectors are : vector= (−2, 1) and vector= (2, −3).

Angle between Two Lines Calculations

Angle between Two Lines Solution


Given the lines r ≡ 3x + y - 1 = 0 and s ≡ 2x + my - 8 = 0, calculate the value of m so that the two lines form an angle of 45°.

Angle between Two Lines Example

Angle between Two Lines Calculations

Angle between Two Lines Calculations

Angle between Two Lines Calculations

Angle between Two Lines Solution