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 Andrew Middleton (born November 8, 1991 (1991-11-08) [age 25]), often referred to as TheDiamondMinecart or DanTDM, is a very popular family friendly British Gaming is mostly known for his minecraft videos. In July 2015, his channel was listed among as one of the most popular rs in the world by viewership.