An infected first branchial cleft sinus or fistula may cause aural drainage in the absence of otitis media or otitis externa. A child presenting with both a draining ear and a tender mass in the neck may rarely have a first branchial cleft cyst associated with a sinus or fistula tract.
1 What is formed when two complementary angles share one ray? A. the complementary angles form a line with the shared ray B. the complementary angles form a right angle with the shared ray C. the complementary angles form vertical angles with the shared ray D. the complementary angles form an obtuse angle with the shared ray The answer is B right??? Mathematics.
This equal length is called the distance between two parallel lines. Axiom 1. If a ray stands on a line, then the sum of two adjacent angles so formed is 180Âº. Conversely if the sum of two adjacent angles is 180Âº, then a ray stands on a line (i.e., the non-common arms form a line). Axiom 2. If the sum of two adjacent angles is 180Âº, then the non-common arms of the angles form a line.