coplanar (which means that they lie on the same plane)
Two lines that are perpendicular to the same plane are coplanar. This means that they lay on the same plane.
Non coplanar lines.
2
coplanar
No. Stand in a cuboid room and consider the line joining the floor and the opposite wall. Line 1: the line joining the floor to the wall on your left. Line 2: the line the far wall to the wall to your right. Both these lines are perpendicular to the first, but they are not in the same plane.
Yes, parallel means that two lines do not cross but lay side-by-side. Perpendicular is the opposite of parallel and means two lines intersecting.
It is the intersection of two planes at the spine of the paper -- two flat regions represented by the two pages of the newspaper. Each is a separate plane, and they cannot be coplanar since there is an angle between them. If you lay the paper out flat, they become a single plane.
I need a lay out of all the vacuum lines for a 1991 Chevy van.
Yes, you can lay down comfortably on a plane seat, but the amount of comfort may vary depending on the airline and type of seat.
Lay the wedge down and look at it. Sure enuff it is an inclined plane!
Yes, and one nest will usually be more than enough for two hens. Two or more chickens will often lay in the same nest if it is a 'favorite', or if there simply aren't enough good, clean, or (in their opinion) 'safe' nests.
are downward lay lines necessary to waypoints