Line–plane intersection

Let's say you have a line, which is like a straight path that goes on forever in both directions. And then you have a plane, which is like a flat surface that goes on forever in all directions.

Now, imagine you want to find where the line and the plane meet or touch each other. This is called the intersection point.

To do this, you need to look at where the line and the plane cross each other. Think of it like a game of connect the dots, where the dot on the line meets the dot on the plane - this is the intersection point.

But not all lines and planes will meet or intersect each other. Sometimes they might be parallel, which means they never get close enough to touch.

So to summarize, line-plane intersection is finding where a straight line meets or touches a flat surface that goes on forever in all directions. You do this by looking where they cross each other, like a game of connect the dots. And not all lines and planes will intersect each other, sometimes they just run parallel and never touch.