The name Delphia is of English origin. The meaning of Delphia is brother. Delphia is generally used as a girl's name. It consists of 7 letters and 3 syllables and is pronounced Del-phi-a.
Perpendicular Lines. Quatr.us Math Geometry Lines. Perpendicular lines. Two lines are perpendicular if they cross at right angles. You can test this by extending the lines until they cross (if they do not cross then they are parallel).erpendicular Lines. Quatr.us Math Geometry Lines. Perpendicular lines. Two lines are perpendicular if they cross at right angles. You can test this by extending the lines until they cross (if they do not cross then they are parallel).
Perpendicular lines are lines in the same plane that intersect to form a 90Â° angle. The notation for perpendicular lines is Line l â¥ Line m. This states Line l is perpendicular to Line m .. Skew lines are lines in different planes that do not intersect. Skew lines are non-coplanar lines. Parallel planes are planes that do not intersect. Perpendicular planes are planes that intersect to form a 90Â° angle.