That is an important theorem in geometry: if two lines intersect to form adjacent congruent angles, then the lines are perpendicular. Those congruent angles would be right angâ¦les.
Williams later became chief surgeon of the Freedmenâs Hospital. Daniel Hale Williams III was born on January 18, 1856, in Hollidaysburg, Pennsylvania, to Sarah Price Williams and Daniel Hale Williams II. The couple had several children, with the elder Daniel H. Williams inheriting a barber business.
Daniel Bitner, with his 2-year-old daughter, Madeline, at a March 4 event honoring a new therapy that has changed his and other kidney-transplant recipientsâ lives. In the year 2000, just as Daniel Bitner was starting dental school at the University of Louisville in Kentucky, he got a kick in the teeth.