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.
When adjacent angles add to , the two non-common rays form a straight angle, and the two angles are called a linear pair: The word supplementary is given when two angles add to 180o. This word is less specific than linear pair in that the angles do not have to be adjacent. Their measures just have to add to 180o.