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.
For the daughter of Senator John P. Hale, see Lucy Lambert Hale. Karen Lucille Lucy Hale (born June 14, 1989) is an American actress and singer. Earlier in her career, she was sometimes credited as Lucy Kate Hale. Hale first came to prominence as one of the five winners of the reality show American Juniors, a children's spin off of American Idol.