4/7/2011 part 2 mathematics!

Q: What mathematical symbol did math whiz Ferdinand von Lindemann determine to be a transcendental number in 1882?
A: Pi.

Q: What do you call an angle more than 90 degrees and less than 180 degrees?
A: Obtuse.

Q: What's the top number of a fraction called?
A: The numerator.

Q: What Greek math whiz noticed that the morning star and evening star were one and the same, in 530 B.C.?
A: Pythagoras.

Q: What's a polygon with four unequal sides called?
A: A quadrilateral.

Q: What's a flat image that can be displayed in three dimensions?
A: A hologram.