A single ray of light can travel in infinitely many different directions.
Both a line and a ray are straight, infinite sets of points that extend indefinitely in opposite directions.
A plane
In 3d space, two planes will always intersect at a line...unless of course they are the same plane (they coincide). Because planes are infinite in both directions, there is no end point (as in a ray or segment). So, your answer is neither, planes intersect at a line.
yes, a ray does have infinite length.true
a line
NO it does not, a ray extends from one point and goes on forever in ONLY ONE direction.
A ray (line extends in both directions and line segment has two endpoints)
A ray is infinite in only one direction.
a line a ray goes in only one direction forever No, a line goes on forever in two directions, a ray starts at one point and then goes on forever.
A line or a ray - depending on whether the planes are finite or infinite.
line