perpendicular line segment (apex)
~APEX~ A parallel line through a point not on the line
~APEX~ A parallel line through a point not on the line
One step that is not involved in constructing a line parallel to the x-axis through a given point is determining the slope of the line to be constructed. A line parallel to the x-axis has a constant y-coordinate, so the only requirement is to maintain the same y-value as the given point while varying the x-coordinate. Thus, the construction simply involves drawing a horizontal line through the specified point.
True. In Euclidean geometry, if there is a line and a point not on that line, there exists exactly one line that can be drawn through the point that is parallel to the given line. This is known as the Parallel Postulate, which states that for a given line and a point not on it, there is one and only one line parallel to the given line that passes through the point.
Euclid's parallel postulate.
perpendicular line segment (apex)
perpendicular line segment (apex)
~APEX~ A parallel line through a point not on the line
~APEX~ A parallel line through a point not on the line
~APEX~ A parallel line through a point not on the line
You can construct a parallel to a line through a point not on the line. (perpendicular line segment)
One step that is not involved in constructing a line parallel to the x-axis through a given point is determining the slope of the line to be constructed. A line parallel to the x-axis has a constant y-coordinate, so the only requirement is to maintain the same y-value as the given point while varying the x-coordinate. Thus, the construction simply involves drawing a horizontal line through the specified point.
perpendicular line segment (apex)
Assume there are no lines through a given point that is parallel to a given line or assume that there are many lines through a given point that are parallel to a given line. There exist a line l and a point P not on l such that either there is no line m parallel to l through P or there are two distinct lines m and n parallel to l through P.
You construct a line perpendicular to the original and then a line perpendicular to this second line.
You construct a line perpendicular to the original and then a line perpendicular to this second line.