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.
Two angles are said to be complementary when the sum of the two angles is 90Â°. Two angles are said to be supplementary when the sum of the two angles is 180Â°. If we have two parallel lines and have a third line that crosses them as in the ficture below-the crossing line is called a transversal. When a transversal intersects with two parallel lines eight angles are produced. The eight angles will together form four pairs of corresponding angles.