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.
On January 20, 2010, President Obama nominated Hale to serve as the United States Attorney for the Western District of Kentucky, in place of David L. Huber who had resigned. His nomination was reported by the Senate Judiciary Committee on April 22, 2010 and he was confirmed by the Senate on April 29, 2010.