There is only one line that can pass through two points and a plane which has only two dimensions intersects with another plane along a one dimensional line
The figure shows a two lines and two planes
1. [tex]\overset{\longleftrightarrow}{XY}[/tex] shows the symbol of a line, and the capital letters X and Y,
The other names for [tex]\overset{\longleftrightarrow}{XY}[/tex] are;
i) Line XY [tex]\left(\overset{\longleftrightarrow}{XY} \right)[/tex]and ii) Line YX, [tex]\left(\overset{\longleftrightarrow}{YX} \right)[/tex]
Reason:
A line can be named by reversing the order of the letters
2. Opposite rays are two rays that extends in opposite directions but have the same endpoint
Opposite rays are; [tex]\overset{\longrightarrow}{RY}[/tex], and [tex]\overset{\longleftarrow}{RX}[/tex]
Reason:
The rays [tex]\overset{\longrightarrow}{RY}[/tex], and [tex]\overset{\longleftarrow}{RX}[/tex] have a common end point, R, and they move in opposite direction
3. The intersection of two planes is a line;
The intersection of the two planes is the line [tex]\mathbf{\overset{\longleftrightarrow}{RS}}[/tex]
Learn more about points, lines, and planes here:
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