In the context of basic geometry, a line that starts at a specific point and goes off indefinitely is called a "ray" (as opposed to a line or a line segment).
A ray in geometry is a line with a single endpoint and extends indefinitely in one specified 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 ray starts at a point and goes on forever
A ray is a portion of a line that starts at one point and infinitely goes off in the opposite direction. Two opposite rays form a line.
Ray AB and ray BA do not name the same ray. A ray is defined by its starting point and extends infinitely in one direction, so ray AB starts at point A and goes through point B, while ray BA starts at point B and goes through point A. Therefore, they represent different directions and are distinct rays.
It is the same. The only difference is that between a ray and a line. A ray starts at one point and goes in ONE direction forever. Imagine if you had a laser gun that would cut through anything. The point where a ray starts is just like the body of the laser gun-- it is where the laser beam starts and the laser only goes away from it in one direction, while the ray itself is like the laser beam--it starts at the gun and will cut through anything in its path. A line does not start or stop at any specific point and goes on in both directions forever. Alternatively, you could think of it as being a laser gun that has some sort of problem where it fires the laser out of the front and the back at the same time.
a ray
There is no end to the number pi...it goes on indefinately. However, pi to the 2oth place is 3.14159265358979323846.
A line that goes on forever in both directions is a line. One that starts at one point and continues forever in the other direction is a ray, and one that has two definite ends is a line segment.
a ray
it is called a ray
A Ray