The angle by which AB turns clockwise about point B to coincide with BC is ? degrees. If from point B, a point E is drawn direc
tly opposite point C so that B, E, and C are on the same straight line, the angle by which AB turns counterclockwise to coincide with BE is ? degrees. fill in the ? marks
(A) it is given that if AB turns clockwise about point B to coincide with BC, then the angle will be=∠ABD+∠DBC=33.3°+30.6°=63.9°.
(B) If from point B, a point E is drawn directly opposite point C so that B, E, and C are on the same straight line, then the angle by which AB turns clockwise to coincide with BE is:∠ABE+∠ABD+∠DBC=180° (using the straight line property)