References: 1  Royal College of Radiologists. 2  Swinson S, Tapp M, Brindley R, Chapman S, Offiah A, Johnson K. An audit of skeletal surveys for suspected non-accidental injury following publication of the British Society of Paediatric Radiology guidelines. 3  Offiah AC, Hall CM.
The question of distance between two straight lines arises only when they are parallel. The given lines are parallel. If the equations of parallel lines are ax + by + c = 0 and ax + by + c' = 0, then the perpendicular distance between them is given by. p = l c - c' l / sqrt ( a^2 + b^2 )
Demonstrate how if two lines are cut by a transversal so that consecutive interior angles, or consecutive exterior angles are supplementary, then the lines are parallel. Provide examples that demonstrate how to determine if lines are parallel or not using the converse postulates and theorems. Provide examples that demonstrate solving for unknown variables and angle measures to determine if lines are parallel or not (ex.