What are two ways to name a line?

What are two ways to name a line?

Line segments are commonly named in two ways:

1. By the endpoints. In the figure above, the line segment would be called PQ because it links the two points P and Q. Recall that points are usually labelled with single upper-case (capital) letters.
2. By a single letter. The segment above would be called simply “y”.

What is line segment AB called?

One and only one line-segment can be between two given points A and B. This line-segment is called AB. It may also be called BA. Line BA is the same as line AB.

Can you name a line AB and BA?

No, Ray AB and Ray BA are not same.

Does order matter when naming a line?

Order does not matter. A ray is a part of a line with one endpoint that extends forever in the direction opposite that endpoint. A ray is labeled by its endpoint and one other point on the line.

What are the symbols for AB and CD?

AB CD : The line AB is perpendicular to line CD: Parallel: EF GH : The line EF is parallel to line GH: Degrees: 360° 360 degrees (a full rotation!) Right Angle (90°) is 90° A right angle is 90 degrees: Line Segment “AB” AB : The line segment between A and B: Line “AB” The infinite line that includes A and B: Ray “AB”

What are the terms for lines and planes?

Line AB (written as ⃡ ) and points A and B are used here to define the terms below. • Plane – A plane has twodimensions. It is represented by a shape that looks like a floor or a wall, but it extends without end. Through any three points not on the same line, there is exactly one plane.

What are the defined terms of a line?

• Defined terms – In geometry, terms that can be described using knownwords such as pointor lineare called defined terms. • Line segment, Endpoints – The line segment AB, or segment AB, (written as ̅̅̅̅ ) consists of the endpoints A and B and all points on ⃡ that are betweenA and B. Note that ̅̅̅̅ can also be named ̅̅̅̅ .