Name an angle complementary to Complementary angles add up to 90 degrees. COA is supplementary to AOE (they add up to 180) AOB is 90 degrees AOD is 180 degrees COB is complementary to COD. And because COD is congruent to AOE (because vertical angles are congruent), COB is also complementary to AOE. So our answer is COB.
Mad Libs was invented in 1953 by Leonard Stern and Roger Price. Stern and Price co-created the game, but couldn't agree on a name for their invention. No name was chosen until five years later (1958), when Stern and Price were eating eggs Benedict at a restaurant in New York City.
Quick Answer. Solomon Harper, an African-American inventor, created the first hair curlers. His model was a thermostatic hair curler, and therefore relied on heat in order to curl hair. He received a patent for his original design in 1930, although he updated his device and applied for a second patent in 1953. Continue Reading.