Distance between two parallel lines
Straight Line of Class 11
Distance Between Two Parallel Lines
Perpendicular distance between the lines ax + by + c = 0 (1)
and ax + by + d = 0 is 
(2)
Two Straight Lines Equally Inclined To A Straight Line
If two straight lines with slope m1 and m2 are equally inclined to a straight line of slope m then
= 
.
Equation of Straight Lines through (h, k) making an angle α with the line
y = mx + c are
y − k = tan(θ − α) (x −h) and
y − k = tan(θ + α) (x −h) where tanθ = m.
- Introduction
- Expressions for some standard points
- Collinearity of three given points
- Locus and Slope of line
- Equation of Straight line in various forms
- Angle between two lines
- Distance between two parallel lines
- Family of Straight lines
- Exercise 1
- Exercise 2
- Exercise 3(Subjective)
- Exercise 4(Subjective)
