Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
History of trigonometry wikipedia , lookup
Pythagorean theorem wikipedia , lookup
Contour line wikipedia , lookup
Euler angles wikipedia , lookup
Perspective (graphical) wikipedia , lookup
Duality (projective geometry) wikipedia , lookup
Cartesian coordinate system wikipedia , lookup
Rational trigonometry wikipedia , lookup
3.6 Prove Theorems about Perpendicular Lines Theorems about perpendicular lines: a) If two lines intersect to form a linear pair of congruent angles then, the lines are perpendicular. b) If two lines are perpendicular, then they intersect to form four right angles c) If two sides of two adjacent acute angles are perpendicular, then the angles are complementary d) If a transversal is perpendicular to one of two parallel lines, then it is perpendicular to the other. (Perpendicular Transversal Theorem) e) In a plane, if two lines are perpendicular to the same line, then they are parallel to each other. (Lines Perpendicular to a Transversal Theorem) Determine the measure of angle 1. Distance From a Line: The distance from a point to a line is the length of the PERPENDICULAR SEGMENT form the point to the line.