perpendicular

perpendicular   Dan perpendicular

Perpendicular Lines Theorem If two lines intersect to form a linear pair of congruent angles, then the lines are perpendicular line Proof:

These slope values are not the same, so the lines are not parallel The slope values are also not negative reciprocals, so the lines are not perpendicular Then 1630s, very steep or perpendicular face of rock, from French précipice, from Latin praecipitium a steep place, literally

ทีเด็ด บอล วัน นี้ ราคา ไหล Setting out Perpendicular Lines: the Rope Method A line has to be set out perpendicular to the base line from peg Peg is not on the base line A Parallel and perpendicular lines If two non-vertical lines that are in the same plane has the same slope, then they are said to be parallel Two parallel