Coplanarity of Two Lines

Rarely Tested

Coplanarity of Two Lines

For:

$$\vec r=\vec a+\lambda\vec b$$

and:

$$\vec r=\vec c+\mu\vec d$$

the lines are coplanar if:

$$(\vec c-\vec a)\cdot(\vec b\times\vec d)=0$$

Usage

- Used to distinguish coplanar lines from skew lines.

No related questions available for this formula yet.

Go back to topics

Join CAT 2026 course by 5-Time CAT 100%iler

Start your IIM journey with the right preparation and crack CAT 2026.