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).
A perpendicular is a line that is at exactly 90Â° to a base line. They are essential to accurate setting out, and are constructed using one of the fundamental principals of building work, the 3-4-5 triangle. From Pythagoras' theorem, we can establish that any triangle that has side lengths in the ratio of 3:4:5 must be a right angled triangle.