The right triangle has one 90 degree angle and two acute (< 90 degree) angles. Since the sum of the angles of a triangle is always 180 degrees... y + z = 90 degrees. The two sides of the triangle that are by the right angle are called the legs... and the side opposite of the right angle is called the hypotenuse.
They were called the Hollywood 10 and accused of being communist. I don't think you would find many people who can name them all.
Lattimore's outspokenness, liberal views and acquaintance with Chiang Kai-Shek made him an easy target for McCarthy's anti-Communist campaigns. In 1950, McCarthy accused Lattimore of being the number one spy for the Soviets. After facing 12 days of intense questioning by McCarthy and his committee, Lattimore was charged with seven counts of perjury.